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All Journal Dinamik SEGMEN Jurnal Manajemen dan Bisnis Reaktor Jurnal Teknik ITS JURNAL TEKNOLOGI LINGKUNGAN IPTEK The Journal for Technology and Science Jurnal Teknik Kimia JURNAL INTEGRASI PROSES ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Ilmiah Giga Media Mesin: Majalah Teknik Mesin Jurnal IPTEK Jurnal Ilmiah Pangabdhi Konversi Briliant: Jurnal Riset dan Konseptual AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian JOURNAL OF INDUSTRIAL AND MANUFACTURE ENGINEERING Jurnal Ilmiah Universitas Batanghari Jambi BERDIKARI : Jurnal Inovasi dan Penerapan Ipteks Machine : Jurnal Teknik Mesin Tibuana : Journal of Applied Industrial Engineering WIDYABHAKTI Jurnal Ilmiah Populer International Journal of Natural Science and Engineering QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Teknik Kimia Jurnal Pengabdian Al-Ikhlas Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Abdi Masyarakat (JAM) Jurnal Inovasi Teknik Kimia Jurnal ABDINUS : Jurnal Pengabdian Nusantara JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Abdimasku : Jurnal Pengabdian Masyarakat Nusantara Science and Technology Proceedings ABSYARA: Jurnal Pengabdian Pada Masyarakat International Journal of Eco-Innovation in Science and Engineering (IJEISE) International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Hydrogen: Jurnal Kependidikan Kimia Jurnal PkM (Pengabdian kepada Masyarakat) Komatika: Jurnal Pengabdian Kepada Masyarakat Jurnal Warta Desa (JWD) Jurnal ENMAP Jurnal Pengbdian Teknik Mesin Dharma: Jurnal Pengabdian Masyarakat Aceh International Journal of Science and Technology Journal of Pharmaceutical and Sciences. Madani: Jurnal Pengabdian Masyarakat dan Kewirausahaan Journal Serambi Engineering (JSE) JSSIT: Jurnal Sains dan Sains Terapan Jurnal Akademika Kimia Environation (Environmental Engineering Journal of Community Dedication) Jurnal Sains dan Sains Terapan
Erwan Adi Saputro
Chemical Engineering Department, Engineering Faculty, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
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Mass Balance of Hydrocarbons Fuel from Waste Cooking Oil and Plastic by Co-Pyrolysis Limbong, Fajar H.; Praja, Delphy Y. A.; Nurmawati, Ardika; Puspitawati, Ika N.; Saputro, Erwan A.
Jurnal Akademika Kimia Vol. 14 No. 3 (2025)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2025.v14.i3.pp132-137

Abstract

Indonesia has committed to climate change mitigation through a sustainable energy transition. Currently, the share of renewable energy in Indonesia’s energy mix only reaches 12 %. One type of renewable energy that the Indonesian government is focusing on is biofuel to reduce consumption and dependence on fossil fuels. Bio-oil produced through pyrolysis has the potential to be used as a biofuel. The chosen pyrolysis process is Co-Pyrolysis, which involves two or more feedstocks. In this study, the process was carried out using waste cooking oil (WCO) and HDPE waste as feedstocks. The process was conducted at 450°C for 30 minutes, with varying masses of both feedstocks. The data obtained were analyzed using mass balance and yield analysis to determine the optimal conditions for producing bio-oil as a hydrocarbon fuel. The optimal condition was found at a mass ratio of HDPE: WCO = 1:4, with a bio-oil yield of 78%. Under these optimal conditions, the conversion of HDPE plastic into heptadecane was 29.39%, and the conversion of oleic acid in waste cooking oil into heptadecane was 38.8%. This also serves as an initial step toward developing a pilot plant-scale process using HDPE plastic waste and waste cooking oil.
Pendeteksian Kandungan Boraks pada Makanan yang Dijajakan di Desa Cangkarman Kabupaten Bangkalan Menggunakan Ekstrak Kunyit atau Ekstrak Bawang Merah Erliyanti, Nove Kartika; Yoghaswara, Rachmad Ramadhan; Saputro, Erwan Adi
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 4 No 2 (2021): Volume 4 Nomor 2 Tahun 2021
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v4i2.14278

Abstract

This community service activity aims to give an education and training for public about the detection of borax content in foods. Borax can be detected in street foods by a special reagent containing turmeric or red onion extract. The partner of this activity is Kelompok Wanita Tani Anggrek from Desa Cangkarman, Kecamatan Konang, Kabupaten Bangkalan. This coaching consists of lecture, discussion, and workshop about borax content in sample foods. Borax can be detected by jabbing a toothpick that had been soaked in a special reagent into a sample food. The result of this activity is the partner can find out how to detect a borax content in street food around them with cheap and simple method.
Studi Literatur: Potensi Material Fe₃O₄/Zeolit sebagai Adsorben Efektif untuk Pengolahan Limbah Cair Industri Saputro, Erwan Adi; Mohamad Rizki Ramadhani; Alya Rahimah; Ardika Nurmawati
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Industrialization and population growth in Indonesia have led to a decline in environmental quality. The increasing activities of industries such as textiles, metal plating, mining, and pharmaceuticals have also generated large amounts of hazardous organic and inorganic wastewater. Adsorption has become a preferred method for treating such waste, particularly through the use of zeolite materials modified with magnetite (Fe₃O₄) to enhance efficiency and ease of separation. The Fe₃O₄/zeolite material exhibits high adsorption capacity toward various pollutants, making it a potential adsorbent for industrial wastewater treatment. This review aims to examine the potential of Fe₃O₄/zeolite as an adsorbent through a literature study by collecting and analyzing secondary data from various scientific publications. The selected literature was analyzed to compare synthesis methods, operating conditions, and adsorption efficiencies in order to obtain a comprehensive understanding of the performance and adsorption mechanism of Fe₃O₄/zeolite. Based on the review, Fe₃O₄/zeolite demonstrates good adsorption efficiency, with recorded values ranging from 42% to 99%.
Synthesis and Application of CaO-MgO Catalyst from Dolomite for Biodiesel Production Poeloengan, Vikky Pramudya Herdiansyah; Pratama, Ananda Melati Octa; Saputro, Erwan Adi
Hydrogen: Jurnal Kependidikan Kimia Vol. 14 No. 1 (2026): February 2026
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v14i1.19579

Abstract

Dependence on dwindling fossil fuels drives the development of biodiesel as a renewable alternative energy. However, the use of homogeneous catalysts, which are difficult to separate, non-reusable, and generate waste, remains a major obstacle. This review aims to examine the potential of dolomite-based heterogeneous catalysts (CaO–MgO) as a more sustainable solution. These catalysts are synthesized through the calcination of dolomite, an abundant carbonate mineral with main components of CaCO₃ and MgCO₃, and can be modified by adding Fe₂O₃, Fe₃O₄, SiO₂, or Na doping to enhance catalytic activity, surface area, and bifunctional properties. Various vegetable oil feedstocks such as Crude Palm Oil (CPO), used cooking oil, tamanu oil, and canola oil have been successfully converted into biodiesel via transesterification (and simultaneous esterification-transesterification) using these catalysts, yielding biodiesel >90% with quality that meets national and international standards. Thus, the synthesis of CaO–MgO catalysts from dolomite promises an effective, economical, and environmentally friendly application for large-scale biodiesel production.
PENGENALAN PEMANFAATAN EKSTRAK SERAI WANGI SEBAGAI PESTISIDA ORGANIK DI DESA BOCEK KARANGPLOSO MALANG Nurmawati, Ardika; Puspitawati, Ika Nawang; Anggraeni, Ika Favia; Raditya, Dendy Wahyu; Pradana, Novan Sandhi; Saputro, Erwan Adi
ABSYARA: Jurnal Pengabdian Pada Masayarakat Vol 3 No 1 (2022): ABSYARA: Jurnal Pengabdian Pada Masyarakat
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/ab.v3i1.5844

Abstract

Bocek Village, located in Karangploso District, Malang Regency, is one of the villages known for its chili production. However, the production of chili plants in this village is often affected by diseases caused by pests such as the fungus Colletotrichum spp., which will cause anthracnose (Patek) disease. This disease can cause defects in chili, reducing the quality of chili production. The farmers have handled the handling by using chemical pesticides, which are considered less effective and harm the environment. One solution that can be used is to use extracts from the citronella to be used as organic pesticides. This community service activity aims to introduce organic pesticides with citronella oil as raw material to the Tri Rejeki farmers group in Bocek Village. The socialization activity was carried out using the lecture method with the material covering the introduction of pesticides, the difference between chemical and organic pesticides, extraction of essential oils with a simple method, and the production process of organic pesticides with citronella oil. An evaluation of the participants was also carried out through a questionnaire given before and after the socialization. After the socialization was conducted, participants understood more about organic pesticides and how to produce them
Pembuatan Asam Oksalat dari Kulit Sukun Gundul dengan Metode Peleburan Alkali Brilian Jusuf Priambada; Nida’uddiin Ali; Caecilia Pujiastuti; Erwan Adi Saputro; Nurul Widji Triana
Jurnal Serambi Engineering Vol. 11 No. 2 (2026): April 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Salah satu limbah organik yang masih jarang dimanfaatkan sebagai produk bernilai jual yaitu kulit sukun. Kulit sukun mengandung beberapa senyawa organik yang dapat dimanfaatkan salah satunya selulosa. Oleh karena itu, selulosa yang terkandung dalam kulit sukun berpotensi menjadi bahan baku dalam pembuatan asam oksalat. Penelitian ini dilakukan dengan membuat asam oksalat sesuai SNI (Standar Nasional Indonesia) dari kulit sukun dengan metode peleburan alkali. Metode dalam penelitian ini dibagi menjadi preparasi sampel, peleburan alkali, pengendapan, pengasaman, dan pengkristalan. Variabel yang digunakan dalam penelitian ini yaitu konsentrasi NaOH (2N; 2,5N; 3N; 3,5N; 4N) dan kecepatan putaran pengadukan (300 rpm; 400 rpm; 500 rpm; 600 rpm; 700 rpm). Dari hasil penelitian didapatkan asam oksalat sintesis terbaik pada konsentrasi NaOH 3,5N dan kecepatan putaran pengadukan 700 rpm dengan yield sebesar 63,1654% dan kemurnian sebesar 97,88%. Asam oksalat sintesis yang dihasilkan memiliki titik leleh sebesar 189°C dan pH sebesar 1,19. Secara organoleptik, asam oksalat sintesis yang dihasilkan memiliki bentuk serbuk halus, berwarna putih, dan tidak berbau.
Evaluation study on performance of heat exchanger – 4000 in central processing area PT. PertaminA EP Asset 4 Sukowati Field SAPUTRO, ERWAN ADI
Machine : Jurnal Teknik Mesin Vol 12 No 1 (2026): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/gr151g26

Abstract

PT Pertamina EP Asset 4 is one of Pertamina's subsidiaries operating in the oil and gas industry. In its production process, PT Pertamina EP Asset 4 requires heat exchangers for various purposes. Impurities on the shell and tube walls is unavoidable, which, if left unchecked, will disrupt the efficiency of the heat exchanger. These impurities accumulate over time and hinder the heat exchanger's efficiency due to debris adhering to the shell and tube surfaces. Therefore, this calculation is aimed at determining the heat transfer efficiency during industrial processes. Heat efficiency, which describes the ratio of heat transferred from a high-temperature fluid (water) to a low-temperature fluid (oil) per unit of time, is a crucial metric for evaluating the effectiveness of the heat exchanger. The research findings show that the overall net coefficient (Uc) and overall design average coefficient (Ud) are recorded at 88.2422 Btu/ft2.hr.°F and 51.7160 Btu/ft2.hr.°F, respectively. Meanwhile, the fouling factor (Rd) is assessed at 0.0079 ft2.hr°F/Btu. Based on the significant difference between Uc and Ud as well as the high Rd value, it can be concluded that the heat exchanger unit has experienced considerable fouling, necessitating a special mechanical cleaning to restore its performance.
MASS BALANCE ANALYSIS OF GLUCOSE FROM SUGARCANE BAGASSE THROUGH ULTRASONIC ENZYMATIC HYDROLYSIS Erwan Adi Saputro; Adithya Daffa Rabbani; Miranda Annisa Anwar; Wiliandi Saputro; Intan Suhada Azmi; Ardika Nurmawati
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 8 No. 1 (2026): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v8i1.6135

Abstract

This study explores the conversion of sugarcane bagasse into glucose through an enzymatic ultrasonic hydrolysis process. Initially, the bagasse undergoes delignification using 6% sodium hydroxide to remove lignin and free cellulose for further processing. The delignified bagasse is then hydrolyzed using cellulase enzyme under ultrasonic conditions. The results indicate that glucose production is influenced by factors such as raw material preparation, enzyme activity, temperature, and pH. Mass balance calculations were applied to assess the input and output of materials throughout the delignification and hydrolysis processes. The findings show that 10 grams of delignified sugarcane bagasse yielded 5.955 grams of glucose, demonstrating the potential of sugarcane bagasse as a source of bioenergy through glucose production. These results support the utilization of agricultural waste in bioethanol production and contribute to sustainable energy development.
ANALYSIS OF MnO2 RECOVERY STUDY FROM DRYCELL BATTERY WASTE: A REVIEW Erwan Adi Saputro; Muhandis Akbar Winaji; Muchammad Fahrizal Hanif; Ardika Nurmawati; Ely Kurniati; Caecilia Pujiastuti
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 8 No. 1 (2026): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v8i1.6498

Abstract

Global demand for manganese dioxide (MnO₂) materials is increasing rapidly as the battery and catalyst industry develops, while the availability of primary ores continues to decline. Waste dry cell batteries contain high amounts of MnO₂, making them potentially a secondary source of economically valuable manganese metals. This study systematically discusses various microwave-assisted hydrometallurgy-based hydrometallurgy approaches for the recovery of MnO₂ from waste batteries. The literature study was conducted by examining 50 current scientific references covering three main aspects: extraction methods, the influence of heating methods, and purification strategies. The core conclusion of this review is that microwave-assisted leaching represents the most efficient extraction approach, delivering recovery rates up to 95.1% that significantly surpassing conventional methods (82–85%) while reducing reaction times and energy consumption by up to 40%. Furthermore, this study concludes that chemical oxidation using KMnO4​ is the superior purification strategy, capable of producing MnO2​ with purity exceeding 98%. Consequently, this review establishes that the integrated system of microwave-assisted leaching and selective KMnO4​ oxidation offers the most robust, economical, and environmentally friendly blueprint for implementing a circular economy in the metals industry
Desain Pengering Makanan dan Analisis Neraca Massa Pada Pembuatan Tepung Sawi Erwan Adi Saputro; Mutasim Billah; Ardika Nurmawati; AR Yelvia Sunarti; Elene Afrisia Efendi
JSSIT: Jurnal Sains dan Sains Terapan Vol 3 No 2 (2025): JSSIT: Jurnal Sains dan Sains Terapan
Publisher : UIN Sulthan Thaha Saifuddin Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30631/jssit.v3i2.137

Abstract

The majority of the residents of Giripurno Village rely on activities in the agricultural and plantation sectors. One of the plantation commodities with high prospects in the area is mustard greens. Until now, the harvested mustard greens from local plantations have generally been marketed in fresh form without undergoing any processing. However, this commodity has the potential to generate various processed products with higher economic value if handled appropriately. One form of processing that can be carried out is converting mustard greens into flour. Therefore, this study focuses on the design of a simple drying device (food dehydrator) and the mass balance analysis in the mustard flour production process. This research was conducted using literature review, the design of a box-type insulated dryer equipped with incandescent lamp heating elements and a temperature control system, and the mass balance analysis of mustard flour production. Based on the analysis of the first experiment, 12 grams of mustard flour were obtained from 150 grams of fresh mustard greens. In the second experiment, 15 grams of mustard flour were obtained from 175 grams of fresh mustard greens.
Co-Authors A.R Yelvia Sunarti Abdul Aziz Achmad Baizuny Achmad Chumaidi, Achmad Achmad Rizaldi Achmad Rizaldi Adithya Daffa Rabbani Afida Kartika Sari Ahmad Khairul Faizin Ahmad Rizaldi Ahmad Rizaldi Ahmad Thobroni Akbar Aiman A. Bobsaid Aiman Anas Bobsaid Ainurrohmah, Syafika Aisyah Alifatul Zahidah Rohmah Al Furkhon, Arif Alfarizi, M. Vurqon Alya Rahimah Anastasia, Bella Wanda Andre Yusuf Trisna Putra Andyas Mukti Pradanarka Anggraeni, Ika Favia Anugerah Dany Priyanto Anugerah Dany Priyanto Apridio Faiz An Nabil Aprilina Purbasari AR Yelvia Sunarti AR Yelvia Sunarti Arbiter Khalida Bramanta Ardika Nurmawati Ardika Nurmawati Ardika Nurmawati, Ardika Arif Al Furkhom Arifin, Ahmad Zaenal Arifin, Ahmad Zaenal Arista Pratama Arista Pratama Arya Mustofa Aryogani, Fajar Auliya Ichda Bandung Arry Sanjoyo Bella Wanda Anastasia Bellani Yunfa Winata Billah, Mu’tasim Billah, Mu’tasim Bintang Bayu Cezarridfalah Bobsaid, Aiman Anas Brilian Jusuf Priambada Caecilia Pujiastuti Chaerani, Novika Cahya Chamida, Rida Defri, Ifwarisan Dendy Raditya Dessy Ariyanti Dessy Ariyanti Devita Salsa Gunawan Dewi Novita Rachmayani Dewi, Dwi Kirana Ika Candra Dhining Ayu Djatmiko, Faiz Putra Dwi Sukma Donoriyanto Efendi, Elene Afrisia Effendi, Anggi Aulia Putri Elene Afrisia Efendi Elene Afrisia Efendi Elsa Rosyidah Elsa Sabrina Agustia Putri Ely Kurniati Endang Pudji Widjajati Eristya Maya Safitri Erliyanti, Nove Kartika Erza Anggara Verbiawan Fadhilah, Rahadyan Itsar Fahimatul Ulum Faiz Putra Djatmiko Farafi, Nafisah Faris Harditya Purnama Fathoni, Nur Alif Iqbal Fawwaz Rafi D Febriansyah, Harris Fransisca Asteria Nandra Febiola Frizqa Ayu Bariqlana Gelar Panji Gemilar Hafid Syaifullah Handy, Febry Widiatniko Heru Wuryanto, Didiek Iffad Rakhmanhuda Ifwarisan Defri Ifwarisan Defri Ika Favia Anggraeni Ika Nawang Puspitawati Imaya M. Nurjannah Imaya M. Nurjannah Intan Suhada Azmi Intania Widyantari Kirana Iqbal Mahendra Iqbal Mahendra Irawan, Rayesha Yuda Irsya Emilia Putri Islami, Mega Cattleya P.A Juwana, Krishna Rahmad Ketut Sumada Kurniati, Ely Kurniawan, Moh Nawawi Kusuma, Meidina R. Laili Mabrur Rohma Laksminingsih, Arieanthi Latif, Ahmad Sofwan Lesdantina, Dina Lia F. Ramadhani Limbong, Fajar H. Luckyana Aini Luckyana Aini Luky Natasha Luluk Edahwati Lutfiananda, Delfian M. Rifki Ramjani M. Vurqon Alfarizi Mardiansyah, Yuda Eka Masykuri Latief Masykuri Latief Meidina R. Kusuma Meisy C. Hutabarat Meisy Cruisyta Hutabarat Melita, Lusia Nada Miranda Annisa Anwar Moch Akbar Munin Putra Moch Tutuk Safirin Mochamad Dhani Dharmawan Moh Nur Fuadzi Moh. Nofianto Mohamad Rizki Ramadhani Mohammad Arriza Novan Tahta Aunillah Mr. Sutiyono Mu'is, Yusup Fatkhul Mu'tasim Billah Muchammad Fahrizal Hanif Muhammad Abdus Salam Jawwad Muhammad Faisal Fadhil Muhammad Faishal Ma’arif Muhammad Ikhsan Muhammad Naufal Zhorif Muhandis Akbar Winaji Munirotul Aina Bin Nur Hidayah Mutasim Billah Mutasim Billah Mutiara Mei Susanti Nadzifah, Novia Nandini, Atika Nazua, Hanani Ndaru Adyono Nerissa Arviana Nerissa Arviana Nida’uddiin Ali Noor Ariefandie Febrianto Nopiyanti, Wiwin Noviani, Siti Alya Novita Indahyani Nugroho, Sutra Amelia Nur Alif Iqbal Fathoni Nur Annisa NUR FITRI MIDAYOGA, DIAH Nurmawati, Adika Nurul Widji Triana Panjaitan, Renova Pinandita, Indrawan Poeloengan, Vikky Pramudya Herdiansyah Pradana, Novan Sandhi Praja, Delphy Y. A. Pratama, Ananda Melati Octa Pratama, Arista Pratiwi, Annisa Kurnia Priambodo, Melandy Dwi Puspitasari, Indah Maharani Puspitawati, Ika N. Putra, Andre Yusuf Trisna Putri Ambarwati Putri Anggraini, Putri Putri, Nabilah Pratama Rachmad Yogaswara Radissa Dzaky Issafira Raditya, Dendy Wahyu Raka Selaksa Charisma Muchammad Ramadhani, Lia F. Ramjani, M. Rifki Rasendriya Putra Ratna Yulistiani Renova Panjaitan Renova Panjaitan Restu Hikmah Ayu Murti Retno Widyastuti Retno Widyastuti, Retno Reva Edra Nugraha Rina Yulianti Romalawati, Meiswita Rus Indiyanto Safirin, Moch Tutuk Sani Sanjoyo, Bandung Arry Saputra, Ananda Dimas Mukti Bayu Sekar Ayu Larasati Sholeha, Novia Amalia Silvana Dwi Nurherdiana Sintha Soraya Santi Sri Winarti SRIE MULJANI Sunarti, A.R Yelvia Susilowati Syafitri, Miranda Dwi Syah Ruddin Nur Hidayat Syuaibatul Islamiyah Tahan Aprijal Simamora Tahan Aprijal Simamora Tahan Simamora Tikat Deri Agratiyan Titi Susilowati Tria Puspa Sari Trianna, Nurul Widji Utama, Hilmy Ghani Wahyu Dwi Lestari Wei Gao Wening Bekti Kusumaningrum Widiya Ningrum Widjajati, Endang Pudji Widya Amelia Krisnanda Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Winursito, Yekti Condro Wira Yudha Nuswantoro Wiwin Nopiyanti Yekti Condro Winursito Yogaswara, Rachmad Ramadhan Yoghaswara, Rachmad Ramadhan Yuniar Dwi Lestari Zuhriah Mumtazah