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All Journal International Journal of Public Health Science (IJPHS) TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Ilmu Lingkungan Journal of Degraded and Mining Lands Management Journal of Engineering and Technological Sciences Indonesian Mining Journal Biosaintifika: Journal of Biology & Biology Education Molekul: Jurnal Ilmiah Kimia Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi Sustainable Environmental and Optimizing Industry Journal Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Pengabdian Sosial Jurnal Pengabdian Nasional (JPN) Indonesia Indonesian Mining Journal Journal of Community Empowerment
Ramadan, Bimastyaji Surya
Department Of Environmental Engineering, Faculty Of Engineering, Diponegoro University (UNDIP), Semarang, Central Java, Indonesia
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Optimasi Sistem Pengangkutan Sampah Kecamatan Jati, Kabupaten Kudus, Jawa Tengah Ramadan, Bimastyaji Surya; Safitri, Rahayu Puji; Cahyo, Mohammad Rafif Dwi; Wibowo, Yudha Gusti
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 1 (2019): Maret 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.509 KB) | DOI: 10.14710/presipitasi.v16i1.8-15

Abstract

Pengangkutan sampah merupakan bagian dari kegiatan pengelolaan sampah yang berpengaruh pada biaya keseluruhan pengelolaan dimana anggaran pengangkutan sampah dapat mencapai 60% dari total seluruh biaya pengelolaan sampah. Tujuan dari penelitian ini adalah untuk mengoptimasi sistem manajemen pengangkutan sampah di Kecamatan Jati, Kabupaten Kudus yang dikelola oleh Dinas Perumahan, Kawasan Permukiman dan Lingkungan Hidup, Kabupaten Kudus. Optimasi dilakukan dengan membandingkan sistem manajemen pengangkutan sampah eksisting dengan merencanakan sistem baru yang dibuat dengan berpedoman pada Permen PU Nomor 3 Tahun 2013 tentang Penyelenggaraan Prasarana dan Sarana Persampahan dalam Penanganan Sampah Rumah Tangga dan Sampah Sejenis Sampah Rumah Tangga. Berdasarkan hasil penelitian yang telah dilakukan, sistem manajemen pengangkutan sampah Kecamatan Jati saat ini dapat dioptimasi pada teknik operasionalnya yang meliputi pemilihan pola yang efektif dan efisien, pembagian rute secara merata dan penyediaan sarana pengangkutan sampah yang baik. Dengan demikian, pemerintah daerah setempat dapat melakukan pelayanan pengangkutan sampah secara maksimal, menggunakan waktu kerja secara efektif, mengefisienkan sarana pengangkutan sampah serta dapat mengurangi anggaran manajemen sampah secara keseluruhan
Identifikasi Aliran Sampah di Kota Semarang Melalui Pengelolaan Sampah Berbasis Masyarakat Ramadan, Bimastyaji Surya; Fauziyah, Fita; Budihardjo, Mochamad Arief; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.451 KB) | DOI: 10.14710/presipitasi.v16i3.117-125

Abstract

Community-based  waste  management  is a form  of  waste  management  recommended  by  the government because  it  is  very  effective  in  creating  a  zero-waste  society.  In  Indonesia,  community-based  waste management can be realized through the development of waste banks at the neighbourhoodlevels. In 2019, the City of Semarang has 48 units of active waste banks. Waste that is managed by the wastebank is plastic, paper and metal. However, there is organic waste which is also managed by several wastebanks. The purpose of this study is to identify and analyze the flow of waste through community-basedwaste management, in this  case of the  waste  bank,  in  the  city  of  Semarang.  The  method  used  is  in-depth  surveys  and  interviews related to the waste bank management system in the city of Semarang. The results showed that the activity of the existing garbagebank was able to reduce waste in the city of Semarang by 0.07% of the total garbage generation  in  the  city  of  Semarang.  This  research  can  be  used  as  a  reference  for  developing  better community-based waste management strategies, especially in Semarang City
Simple Technology to Convert Coconut Shell Waste into Biochar; A Green Leap Towards Achieving Environmental Sustainability Wibowo, Yudha Gusti; Ramadan, Bimastyaji Surya; Andriansyah, Muhammad
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 2 (2019): Juli 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.256 KB) | DOI: 10.14710/presipitasi.v16i2.58-64

Abstract

Pyrolysis is a technology to convert biomass into high-value product such as biochar. Biochar is a bio-based material as well as char that can maintain soil, water and air quality. Biochar can produced by all of plant parts and generated directly from pyrolysis for a few hours in a certain temperature. The quality of biochar production is highly dependent on the pyrolysis temperature, heating rate, particle size, type, and composition of feedstock and reactor conditions. Several study inform that biochar produced by high temperature such as furnace. Application of biochar in soil can solve contaminated soil from pollutants such as toxic metals contamination, low pH issues and degradable soil caused by industrial activities. Therefore, the application of biochar in water ecosystem can solve some problems such as reduce toxic metals content in wastewater. Biochar known can give significant impact to reduce global warming through the reduction of greenhouse gas emissions and the sequestering of atmospheric carbon into soil. This condition is a problem for several areas especially rural area in developing countries. This paper will describe clearly how to produce biochar use simple technology. Thus, this paper will provide useful information for reducing environmental problems especially on rural areas.
Analisis Kuantitatif Sistem Manajemen Lingkungan Berdasarkan Klausul ISO 14001:2015 Ramadan, Bimastyaji Surya; Hapsari, Santika Budi; Pramesti, Ajeng Lhaksita; Ikhlas, Nurani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 1 (2019): Maret 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.66 KB) | DOI: 10.14710/presipitasi.v16i1.1-7

Abstract

PT. X merupakan perusahaan yang bergerak dalam bidang pengelolaan dan pengolahan limbah, sehingga sistem manajemen lingkungan yang baik dan benar sangat diperlukan dalam proses produksinya. Dokumen ISO 14001:2015 menjadi acuan PT. X dalam melakukan sistem manajemen lingkungan. Sertifikasi Sistem Manajemen Lingkungan ISO 14001 : 2015 merupakan bukti bahwa PT.X telah secara aktif melakukan audit eksternal maupun internal dalam bentuk self assessment dengan acuan yang ada pada klausul ISO 14001 : 2015. Pada penelitian ini dilakukan analisis secara kuantitatif menggunakan panduan self assesment yang dikeluarkan oleh Global Environmental Management Initiative (GEMI). Checklist ini berisikan daftar persyaratan yang mengacu pada standar ISO 14001:2015, dan ditulis dalam format pertanyaan baku beserta skoring kuantitatif. Dari hasil analisa yang telah dilakukan, PT. X telah memenuhi prinsip ISO 14001:2015 yang dapat dilihat dengan adanya Standard Operating Procedure (SOP) yang berisi tata cara operasi, proses produksi dan pemeliharaan lingkungan, serta terdokumentasikannya kebijakan dan komitmen manajemen puncak tentang sistem manajemen lingkungan. Kebijakan dan komitmen lingkungan merupakan prinsip utama yang menjadi dasar untuk diterapkannya sistem manajemen lingkungan.
Optimasi Sistem Pengangkutan Sampah di Kecamatan Tembalang Kota Semarang Pramesti, Ajeng Lakshita; Sumiyati, Sri; Ramadan, Bimastyaji Surya; Samadikun, Budi Prasetyo; Sudarno, Sudarno
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 2 (2020): Juli 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (902.495 KB) | DOI: 10.14710/presipitasi.v17i2.128-137

Abstract

Kecamatan Tembalang memiliki jumlah penduduk sebanyak 206.271 jiwa dengan timbulan sampah sebanyak 156,8 m3. Kecamatan Tembalang memiliki 18 TPS, 23 kontainer, dan 7 kendaraan pengangkut untuk menangani sampah dari TPS menuju TPA Jatibarang. Persentase pelayanan pengangkutan sampah di Kecamatan Tembalang hanya sebesar 27%. Beberapa TPS belum dapat menampung timbulan sampah dari penduduk Kecamatan Tembalang. Kondisi jalan, jenis jalan, dan kecepatan kendaraan dari rute pengangkutan sampah mempengaruhi waktu pengangkutan dan biaya operasional yang dikeluarkan. Tujuan dari perencanaan ini adalah merencanakan sistem pengangkutan sampah di Kecamatan Tembalang dengan mengoptimalkan waktu kerja dan biaya sesuai dengan target yang diinginkan oleh dinas terkait. Sisa waktu kerja rata-rata yang dimiliki kendaraan pengangkut sampah di Kecamatan Tembalang adalah 2,28 jam dengan jumlah ritasi 21 rit/hari. Rute pengangkutan dioptimasi menggunakan Network Analyst pada aplikasi berbasis GIS. Kondisi jalan mempengaruhi waktu pelayanan dan kecepatan kendaraan rata-rata optimal 37,607 km/jam yang menyebabkan jumlah ritasi bertambah menjadi 34 rit/hari, dengan 31 kontainer dan sisa waktu kerja rata-rata adalah 1 jam. Optimasi tersebut menyebabkan meningkatnya persentase pelayanan menjadi 42%. Peningkatan biaya operasional kendaraan (BOK) diketahui sebesar Rp 694.262.870,53/tahun dengan penurunan biaya retribusi sebesar Rp 1.983,59/KK/tahun dikarenakan pertambahan persentase pelayanan.
Compost Solid-phase Microbial Fuel Cell (CSMFC) Performance using Graphene and Graphite as Electrodes Putri, Soraya Annisa; Confera, Akbar Nugroho; Syafrudin, Syafrudin; Ramadan, Bimastyaji Surya
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 3 (2020): November 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (980.431 KB) | DOI: 10.14710/presipitasi.v17i3.324-333

Abstract

Organic waste is a type of waste produced by many sector, which need to managed appropriately. During its development, composting is one of the organic waste management efforts that is often be applied, Another alternative organic waste management in the form of Microbial Fuel Cell (MFC) has emerged. Several researchers conducted studies on MFC performance which was influenced by many factors, especially the electrode which contributes to the electron transfer process. This study has a concern about energy optimization through CSMFC technology using different electrode’s material. Electrode materials from Graphene and Graphit has good electro-conductivity and has a large surface area, making it suitable for bacteria to adhere. The sampled reactors are consists of two types of electrodes  in the form of graphite and graphene. Each materials has anode and cathode ratio of 1:1, 2:1, and 3:1. The samples measured into three kinds, which called a mature compost measurement, electrochemical measurement, and biochemical measurement. Some collected sampling data were then processed and analyzed statistically using SPSS software. The processed and analyzed data included the calculation of power density, total N, C/N ratio, and moisture content. Any data like voltage (V) and electric current (I) are needed to obtain a power density. The highest average voltage, current, power and power density are produced by the N3 reactor (graphene 3:1) that is 269 x 10-3 V, 163 x 10-6 A, 56 x 10-6 Watt and 1.914 x 10-3 W / m2. There is no significant effect of variations in the type of electrode (graphite and graphene) on CSMFC performances.
Municipal infectious waste during COVID-19 pandemic: trends, impacts, and management Iva Yenis Septiariva; I Wayan Koko Suryawan; Ariyanti Sarwono; Bimastyaji Surya Ramadan
International Journal of Public Health Science (IJPHS) Vol 11, No 2: June 2022
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijphs.v11i2.21292

Abstract

The coronavirus disease 2019 (COVID-19) shifts the characteristics of municipal waste. This paper aims to provide an overview of trends, impacts, and management during the COVID-19 pandemic globally. The increase in the generation of plastic waste and infectious waste is a new challenge during the COVID-19 pandemic. It was found that the emergence of plastic waste due to the consumption of food delivery becomes an issue in several countries. Despite the increment of plastic waste generation, the mass layoffs contributed to the decrease in the total urban waste generation in general. In addition to plastic waste, a surge of infectious waste from health facilities and household waste originating from residents infected with the SARS-COV-2 virus was observed. This infectious wastewater potentially leads to environmental disturbances to the rivers and oceans. To tackle global environmental concerns, sustainable waste management is required especially in the development of biodegradable personal protective equipment.
Promising Adsorption of Sulfidic Acid Gases Using Wet Banana Plant Adsorbent (Musa spp.) Haryono Setiyo Huboyo; Badrus Zaman; Bimastyaji Surya Ramadan; Anastasia Dinda Prinaningrum
Journal of Engineering and Technological Sciences Vol. 54 No. 1 (2022)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2022.54.1.10

Abstract

Bananas have the highest production rate among fruits in Indonesia, which leads to the generation of a significant amount of banana fruit solid waste. In this study, we assessed the potential use of banana waste to remove hydrogen sulfide (H2S) gas. In particular, the purpose of this study was to analyze the efficiency of banana waste as an adsorbent for H2S gas. We tested the stems, leaves, and peels of banana plants as H2S gas adsorbents with varying contact times. To obtain a microscopic view of the adsorbents before and after the experiment, we conducted measurements using scanning electron microscopy with dispersive X-ray spectroscopy. The banana leaves, stems, and peels were found to have H2S gas absorption efficiency values of 76.52%, 51.83%, and 6.44%, respectively. Based on the experiment, the leaves of the banana plant appear to be the best adsorbents, with an adsorption capacity of 1.67 mg/g. The results also revealed that there was a change in the fiber and stomata appearance of the banana leaves after the adsorption process. Overall, this research indicates that banana leaves have the potential to be used as effective H2S adsorbents.
Tinjauan Nilai Manfaat pada Pengelolaan Sampah Plastik Oleh Sektor Informal (Studi Kasus: Kecamatan Purwodadi, Kabupaten Grobogan) Ratna Kustanti; Arya Rezagama; Bimastyaji Surya Ramadan; Sri Sumiyati; Budi Prasetyo Samadikun; Mochtar Hadiwidodo
Jurnal Ilmu Lingkungan Vol 18, No 3 (2020): November 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.18.3.495-502

Abstract

Penggunaan kembali material limbah dengan cara mendaur ulang merupakan salah satu cara efektif untuk menghindari pencemaran lingkungan dan mengurangi volume timbulannya di Tempat Pembuangan Akhir. Penelitian ini dilakukan untuk mengetahui potensi ekonomi kegiatan daur ulang sampah plastik oleh sektor informal di Kecamatan Purwodadi. Penelitian dilakukan melalui survei menggunakan kuesioner terhadap 29 pelaku daur ulang. Hasil penelitian menunjukkan bahwa potensi ekonomi yang terdapat dalam usaha daur ulang sampah plastik pada tiap tingkatan pelaku daur ulang berbeda-beda. Berdasarkan analisis kelayakan ekonomi menggunakan  nilai Net Present Value (NPV), Benefit Cost Ratio (BCR),  dan  Internal Rate of Return (IRR) dapat disimpulkan bahwa usaha daur ulang tingkat penggiling layak secara ekonomi dengan nilai NPV Rp 923.395.260  (NPV > 1), nilai BCR 1,58 (BCR > 1), dan nilai IRR 56,82. Benefit (manfaat) dari implementasi program 3R sampah plastik pada sektor informal secara umum dapat digolongkan menjadi dua manfaat, yaitu manfaat langsung (direct benefit) dan manfaat tidak langsung (indirect benefit). Manfaat langsung (direct benefit) berupa keuntungan penjualan sampah plastik. Keuntungan bersih tiap jenis sampah plastik pada tingkat pemulung  antara Rp 500-Rp 2.600, tingkat bank sampah berkisar antara Rp 100-Rp 400, tingkat pengepul I berkisar antara Rp 91,67-Rp 391,67, tingkat pengepul II berkisar antara Rp 173,46-Rp 473,46, tingkat bandar berkisar antara Rp 186,94-Rp 686,94, dan tingkat penggiling berkisar antara Rp 136,23-Rp 1.136,32. Manfaat tidak langsung (indirect benefit) adanya pengelolaan sampah plastik oleh sektor informal yaitu tereduksinya sampah plastik di Kecamatan Purwodadi sebesar 10,08%.ABSTRACTRecycling of waste material is an effective way to eliminate environmental pollution and reduce the volume of its generation in landfills. This research purpose was to determine the economical potention of plastic waste recycling business by the informal sector in Purwodadi District. The research method by a questionnaire survey of 29 recycling actors. The results showed that the economical potention of the plastic waste recycling business at each level of the recycling actors was different. Based on the economic feasibility analysis using Net Present Value (NPV), Benefit Cost Ratio (BCR), and Internal Rate of Return (IRR), it can be concluded that recycling business at the grinder level is economically feasible with NPV value of Rp 923,395,260 (NPV> 1) , BCR value 1.58 (BCR> 1), and IRR value 56.82. The benefits of implementing the 3R plastic waste program in the informal sector can be classified into two benefits, there are direct benefit and indirect benefit. The direct benefit can be formed the profit from selling plastic waste. The net profit of each type of plastic waste at the scavenger level is about Rp 500-Rp 2,600, the level of waste bank about Rp 100-Rp 400, the level of collectors I about Rp 91.67-391.67, the level of collector II about  Rp 173.46-Rp 473.46, the level of dealer about Rp 186.94-Rp 686.94, and the grinder level about Rp 136.23-Rp 1,136.32. The indirect benefit of plastic waste management by the informal sector is the reduction of plastic waste in Purwodadi District for about 10.08%.
Understanding Informal Actors Of Plastic Waste Recycling In Semarang City Budi Prasetyo Samadikun; Arya Rezagama; Bimastyaji Surya Ramadan; Pertiwi Andarani; Erina Dwi Rumanti
Jurnal Ilmu Lingkungan Vol 18, No 1 (2020): April 2020
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (372.268 KB) | DOI: 10.14710/jil.18.1.162-170

Abstract

ABSTRAKKegiatan daur ulang sampah di Kota Semarang dapat dilakukan dengan cukup baik berkat campur tangan dari sektor informal. Sayangnya, kegiatan pengelolaan sampah formal tidak mempertimbangkan nilai pemulihan sampah. Penelitian ini bertujuan untuk mengidentifikasi aliran sampah plastik di sektor informal di Kota Semarang. Peneliti menggunakan wawancara mendalam untuk mengumpulkan data. Ada 46 agen daur ulang, termasuk lima (5) pemulung, 17 pengepul 20 perusahaan skala kecil, tiga (3) perusahaan skala besar, dan 1 perantara (pabrik penggilingan plastik) yang telah diwawancarai. Data dari Badan Lingkungan Hidup Kota Semarang digunakan sebagai data sekunder. Hasil penelitian menunjukkan bahwa jumlah sampah plastik yang dihasilkan oleh masing-masing agen daur ulang diperkirakan 23,98 kg/ hari di tingkat pemulung, 54,74 kg/ hari di tingkat pengepul, 347,48 kg / hari di tingkat perusahaan skala kecil, 1.735,3 kg / hari di tingkat perusahaan skala besar, dan 2.160 kg / hari di tingkat perantara. Produsen bijih plastik daur ulang berlokasi di luar Kota Semarang, sedangkan bank sampah berbasis masyarakat adalah bagian dari pengelolaan sampah berbasis masyarakat yang tidak mencari keuntungan. Oleh karena itu, tidak dibahas secara mendalam di penelitian ini.Kata kunci: sampah plastik, aliran sampah, agen daur ulangABSTRACTWaste recycling activities in Semarang City can be conducted quite well due to the interference of the informal sector. Unfortunately,  the formal waste management activities do not consider the utilization of waste recovery value. This study aims to identify the flow of plastic waste in the informal sector in Semarang City. We used in-depth interviews to collect data. There are 46 recycling agents, including five (5) scavengers, 17 scrap dealers, 20 small scale enterprises, three (3) large scale enterprises, and 1 intermediate (plastic grinding mill) that has been interviewed. Data from The Environment Agency of Semarang City obtained as secondary data. The results showed that the amount of plastic waste generated by each recycling agent was estimated at 23.98 kg/day at the scavenger level, 54.74 kg/day at the scrap dealer level, 347.48 kg/day at the small scale enterprise level, 1,735.3 kg / day days at large scale enterprise level, and 2,160 kg/day at the level of plastic waste intermediates. Recycled plastic ore producers are located outside Semarang City, whereas the community-based waste bank is part of community based solid waste management that is not looking for profit. Hence, it is not discussed in depth in this study.Keywords: plastic waste, waste flow, recycling agent
Co-Authors Agus Jatnika Effendi Agus Jatnika Effendy Agustara, Hanifah Alkatrin, Nazwa Silva Anastasia Dinda Prinaningrum Anggrika Riyanti Anik Sarminingsih, Anik Anis Tatik Maryani Ari Endang Jayati Ariyanti Sarwono Arya Rezagama Aufa Rahma Al-Hafidz Ayudya Izzati Dyah Lantasi Azmi, Ananda Faiz Naufal Beata Ratnawati Budi Prasetyo Samadikun Cahyo, Mohammad Rafif Dwi Candra Purnawan Catur Retno Lestari Chairunisha, Amalia Christina Candra Dewi Confera, Akbar Nugroho Derman, Derman Dewi, Sintia Puspa Dimas Ardi Prasetya Eflita Yohana Elawati, Nunung Eni Erina Dwi Rumanti Fadel Iqbal Muhammad Fauziyah, Fita Fauziyah, Fitria Umi Florentina Kusmiyati Hadrah, Hadrah Haekal Awliya Muhammad Salman Hapsari, Santika Budi Hardiyanti, Nurandani Haryono Setiyo Huboyo Ika Bagus Priyambada Irawan Wisnu Wardhana Isaaf Fadhilah Iva Yenis Septiariva Ivone Wulandari Budiharto Iwan Saputra Jassey, Babucarr Junaidi Junaidi Kirana, Aina Sasi Kusuma, Azril Praja La Ode Arkham Mamdhokha, Mamdhokha Marco, Martha Aulia Mochamad Arief Budihardjo Mochamad Arief Budihardjo Mochtar Hadiwidodo Monik Kasman Muhammad Andriansyah, Muhammad Natasya Ghinna Humaira Novitasari, Artha Dewi Nurandani Hardyanti Nurani Ikhlas Paramitadevi, Yudith Vega Pertiwi Andarani Pramesti, Ajeng Lakshita Pramesti, Ajeng Lhaksita Putri, Soraya Annisa Ratna Kustanti Riska Rahmah Dani Fitri Rizal Adi Wirawan Rosarina, Desy Roselyn, Melfina Safiqy, Salman Safitri, Rahayu Puji Santosa, Ayu Permatasari Putri Satria Pinandita Sri Sangkawati Sachro Sri Sumiyati Sriyana, Ignatius Sudarno Sudarno Suryawan, I Wayan Koko Syafrudin syafrudin Syafrudin Syafrudin Syafrudin Syafrudin Syarif Hidayat Syarif Hidayat Titik Istirokhatun Undari, Melinda Tri Wahyul Amien Syafei Wibowo, Mariska Aulina Wibowo, Yudha Gusti Wiharyanto Oktiawan Winardi Dwi Nugraha Yusfi, Inas Haida Yusrannastar, Hadyan ZAMAN, Badrus