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All Journal Jurnal Teknik Mesin (JTM) Jurnal Tecnoscienza Jurnal ABDINUS : Jurnal Pengabdian Nusantara Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Abdi: Media Pengabdian Kepada Masyarakat International Journal of Science, Engineering and Information Technology Jurnal Pengabdian Kepada Masyarakat Jurnal Minfo Polgan (JMP) Jurnal Pengabdian pada Masyarakat Ilmu Pengetahuan dan Teknologi Terintegrasi DEVOTE: Jurnal Pengabdian Masyarakat Global Journal of Applied Business and Technology Jurnal Teknik Mesin Jupiter: Publikasi Ilmu Keteknikan Industri, Teknik Elektro dan Informatika Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer Jurnal Pengabdian Kepada Masyarakat
Riswan Eko Wahyu Susanto
Politeknik Negeri Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Nursing Public Health Social Sciences Veterinary Other

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Increasing the productivity of MSMEs processing herbal medicine with appropriate technology for choppers and grinders Riswan Eko Wahyu Susanto; Ahmad Dony Mutiara Bahtiar; Yohan Bakhtiar; Miftakhul Huda; Setiyo Rojikin
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 8, No 4 (2023): November 2023
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v8i4.11600

Abstract

 Indonesian society has traditional healing methods that involve a variety of uses of plants, animal products, and minerals. Medicinal plants have been used and mixed well by various ethnic groups of Indonesian society as herbal medicine. Wahyu Alam Foundation MSMEs located in the city of Kediri, are farmers and herbal plant entrepreneurs who have problems. The Wahyu Alam Foundation MSME as a community service partner has problems related to processing herbal plants with the process still being manual, so they need help to make the production process easier. The results of this service activity include a visible increase in productivity, previously Manual production in two stages after direct chopping, and grinding, took 20 minutes per kg and 20 kg of product was obtained in a day, resulting in a faster time of 10 minutes per kg, while the product yield increased to 40 kg per day. Based on data obtained by MSMEs Herbal Medicine, the predicted increase in profits was at an average of 18%, while the average increase in rupiah was 3.222 million. This increase was due to the optimal use of machines, along with increased marketing due to the increasing demand for herbal medicine on the market. 
Perancangan Mesin Perajang Bawang dengan Model Pemotongan Horisontal Puli Engkol Riswan Eko Wahyu Susanto; Hiding Cahyono; Ahmad Dzulfikri Halimi; Aditya Sandy Pratama; Moch. Fiky Frediansyah
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 2 No. 2 (2024): April: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v2i3.357

Abstract

Community Small and Medium Enterprises (MSMEs) have an important role in advancing the Indonesian economy. One of them is MSME UD. NATURAL FOOD which operates in the field of processing various types of onions. After observations, there are deficiencies in the onion chopping machines currently in use which cannot produce premium grade processed onions. The solution to this problem is to create a Transmission Design and Premium Horizontal Shallot Chopper Blade with an Output Capacity of 15 Kg Per Hour. It is hoped that this tool can help produce quality fried shallots. The method used in design is a design method that begins with observation and literature study, then continues with the planning stage including (planning the transmission system and chopper system). The results obtained in designing this machine show the size of the machine with dimensions of 70 cm wide, 145 cm long, 89 cm high, using 3 mm thick angle iron as part of the frame. And the results of the calculation of the load on the hopper is 231.4 N, the load on the transmission is 138.84 N, the load on the electric motor is 112.14 N. The heaviest load on the frame is on the hooper, amounting to 231.4 N. From the results of the data above it will then be Loading simulations were carried out, the results obtained were stress analysis (yield strength) of 25,000N, maximum displacement analysis on the frame of 5.287mm, and factor of safety analysis on the frame of 5.5. 4 then the frame is declared safe . And it has been designed and made safe to use, because no damage occurs to the frame when the machine is operated. Based on the design results of the transmission and premium horizontal premium onion chopper blade with an output capacity of 15 kg per hour, the engine torque (T) is 545,04 Nm. The engine power requirement is 1,566 kW. The pulley ratio on the machine is (1:10). Pulley diameter 3.8. The shaft diameter is 19 mm and the resulting chopping capacity is 17,4 m^2/hour.
PENDAMPINGAN MANAJEMEN KEUANGAN PADA PETERNAK LEBAH MADU DI KABUPATEN NGANJUK Choirul Hana; Riswan Eko Wahyu Susanto; Rico Anggriawan
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol. 1 No. 1 (2020): Jurnal Abdikmas
Publisher : LPPM Universitas Kahuripan Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak Madu adalah zat manis alami yang dihasilkan lebah dengan bahan baku nektar bunga. Pada saat musim penghujan nektar sulit ditemukan karena tidak ada tanaman yang berbunga. Hal tersebut menyebabkan madu yang dihasilkan oleh peternak lebah madu mengalami penurunan yang sangat drastis, menurut pengalaman Bapak Bahrudin dari 80 kotak lebah madu yang dimiliki ketika musim hujan hanya mampu bertahan 10 kotak lebah madu, pada masa seperti ini bisa disebut sebagai masa paceklik. Tidak adanya nektar bunga ini membuat peternak lebah madu harus mengganti nektar tersebut dengan cairan gula. Dalam setiap minggunya untuk memberi makan lebah madu dalam 100 box membutuhkan 50 kg gula pasir. Gula pasir ini dicairkan kemudian dimasukan dalam box sebagai pengganti nektar agar lebah madu dapat bertahan hidup. Pada masa seperti ini madu yang dihasilkan oleh lebah tidak boleh dipanen karena mengandung banyak glukosa atau dikalangan peternak lebah madu di sebut madu aspal (asli tapi palsu), tetapi untuk peternak madu yang tidak memperhatikan kualitas madunya mereka tetap memanenya. Sedangkan untuk menghasilkan madu yang berkualitas harus benar – benar berasal dari nektar. Hal tersebut semakin memperburuk kondisi keuangan peternak lebah madu dimana tetap mengeluarkan biaya untuk perawatan lebah madu tetapi tidak ada pendapatan karena madu tidak dapat dipanen. Kondisi paceklik seperti ini membuat peternak lebah madu mencari sumber pendanaan dari berbagai lembaga keuangan baik perbankan maupun lembaga keuangan bukan bank namun sulit mendapatkanya karena mereka tidak memiliki laporan keuangan yang tersusun dengan baik sehingga untuk mendapatkan pendanaan yang cepat mereka harus menjual asset pribadinya. Ketika musim panen mereka menginvestasikanya kembali. Berdasarkan analisis permasalahan tersebut diatas, pengabdi memberikan solusi dengan melakukan pendampingan penyusunan laporan keuangan dan manajemen keuangan untuk mendapatkan pendanaan di lembaga keuangan dan tidak lagi menjual aset pribadi. Metode pelaksanaan pengabdian ini adalah interview, sosialisasi dan pendampingan. Dari pelaksanaan pengabdian tersebut luaran kegiatan yang akan dicapai adalah adalah publikasi di jurnal nasional ber ISSN, video pelaksanaan yang dapat diakses di youtube, publikasi di media cetak, buku referensi dan karya seni terapan. Kata kunci: Manajemen, Keuangan, Peternak, Lebah, Madu Abstract Honey is a naturally sweet substance produced by bees from flower nectar. During the rainy season, nectar is hard to find because there are no flowering plants. This causes the honey produced by honey bee breeders to experience a very drastic decline. According to Mr. Bahrudin's experience, from the 80 honey bee boxes he owned during the rainy season, only 10 boxes of honey bees can last. The absence of flower nectar makes honey beekeepers have to replace the nectar with liquid sugar. In every week to feed honey bees in 100 boxes requires 50 kg of sugar. This granulated sugar is liquefied and then put in a box as a substitute for nectar so that the honey bees can survive. At times like this, honey produced by bees should not be harvested because it contains a lot of glucose or honey bee breeders call it asphalt honey (real but fake), but for honey farmers who do not pay attention to the quality of the honey they still harvest it. Meanwhile, to produce quality honey must really come from nectar. This worsens the financial condition of honey bee farmers, where they still pay for honey bee care but they have no income because honey cannot be harvested. This poor condition makes honey bee breeders look for sources of funding from various financial institutions, both banks and non-bank financial institutions, but it is difficult to get them because they do not have well-structured financial reports so that to get fast funding they have to sell their personal assets. When it's harvest season they reinvest it. Based on the analysis of the problems mentioned above, the service provider provides a solution by assisting in the preparation of financial reports and financial management to obtain funding at financial institutions and no longer sell personal assets. The method of implementing this service is interview, socialization and mentoring. From the implementation of this service, the outputs of the activities to be achieved are publications in national journals with ISSN, implementation videos that can be accessed on YouTube, publications in printed media, reference books and applied art works. Keywords: Management, Finance, Breeders, Bees, Honey
PERANCANGAN DESAIN MESIN VAKUM PEMISAH LIMBAH GERAM DENGAN OIL CUTTING MENGGUNAKAN AUTODESK INVENTOR : DESIGN OF VACUUM MACHINE FOR SEPARATING METAL SCRAP WASTE WITH OIL CUTTING USING AUTODESK INVENTOR Riswan Eko Wahyu Susanto; Yulia Puspa Dewi; Setiawan, Deny; Cahyono, Hiding; Mutiara Bahtiar, Ahmad Dony
Jurnal Teknik Mesin Vol. 2 No. 1 (2023): JURNAL TEKNIK MESIN
Publisher : Program Studi Teknik Mesin PSDKU Polinema Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jmeeg.v2i1.4090

Abstract

Metal scrap waste mixed with oil cutting can reduce the quality of the oil cutting itself, so it cannot be used directly. Meanwhile, the waste that is mixed with oil cannot be processed directly such as recycling / remelting. Cutting oil as a cooling material for the cutting process, so from here the recycle of cutting oil is needed, so a tool/machine is needed to separate the waste from the oil cutting. The research method used is design research which consists of planning machine elements and making machine designs. In the planning of machine elements, more emphasis is placed on the impler blade of the vacuum separator while the drawing uses Autodesk Inventor. From the results of the design and design of the "vacuum separator" it is obtained that; the dimensions of the impeller are 20 mm in diameter, the impeller neck is 28 mm in diameter, the impeller eye and the inlet side are the same diameter 92 mm, the inlet side of the impeller has an angle of 16 °, the width of the bow is 18.85 mm, while the distance between the blades (?1) is 48.17 mm, the diameter of the outgoing side of the results of the calculation is 230 mm, the angle of the outgoing side of the impeller is 25 ° and the wide side of the impeller is 7.5 mm, at the distance between the blades of the incoming side (?2) 120.42 mm. So that from the design of the machine element, the number of impellers is obtained 6 blades, with the results analyzed with a safety factor of 15 Ul.
Development of Web-Based Advertisement Media on Sahrul Home Car Care Bakhtiar, Yohan; Izzah, Abidatul; Cinderatama, Toga Aldila; Nugroho, Benni Agung; Susanto, Riswan Eko Wahyu
Journal of Applied Business and Technology Vol. 4 No. 3 (2023): Journal of Applied Business and Technology
Publisher : Institut Bisnis dan Teknologi Pelita Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35145/jabt.v4i3.138

Abstract

Amidst the ongoing Covid-19 pandemic, non-essential activities have shifted mainly to the safety of people's homes. This includes remote work (Work From Home) and shopping for basic needs online. However, service workers, particularly those in the service sector like Muhammad Sahrul, have faced significant challenges navigating the pandemic's impact. Sahrul, who owns an all-brand car repair shop, experienced a decline in customers visiting his workshop due to the outbreak. Recognizing the need for a fresh approach, Sahrul created "Sahrul Home Car Care," offering car repair services at customers' residences. To support this initiative, a team of researchers proposed technology-based solutions to improve his advertising strategy. The researchers developed a user-friendly digital portal, www.sahrulhomecarcare.com, showcasing Sahrul's services and implementing an appointment booking system. Additionally, they guided leveraging digital marketing channels to expand his outreach. Thanks to these digital innovations, Sahrul's business gained traction, attracting more customers and positive feedback. Embracing technology proved instrumental in overcoming the pandemic's challenges and ensuring the continued success of "Sahrul Home Car Care" in this ever-evolving digital era.
Increasing the Productivity of Fried Shallot "Emak" Kediri MSMEs with Appropriate Technology and Business Management Assistance Riswan Eko Wahyu Susanto; Agus Dani; Yohan Bahtiar; Miftakhul Huda; Setiyo Rojikin
PaKMas: Jurnal Pengabdian Kepada Masyarakat Vol 5 No 2 (2025): November 2025
Publisher : Yayasan Pendidikan Penelitian Pengabdian Algero

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54259/pakmas.v5i2.6162

Abstract

The grand harvest of shallots is a time when almost all shallot farmers harvest simultaneously, resulting in an abundant supply of shallots and a plentiful supply of fried shallot ingredients at low prices. In contrast, during the lean season, shallot prices become expensive, leading to inflation (price fluctuations of shallots). This has a direct impact on the ‘Emak’ Fried Shallots MSMEs located in Kediri Regency. Another problem faced by partners is that the production process is carried out using small-capacity machines, and premium fried shallots are produced manually, so the production process requires a lot of labour, time and production costs. With the implementation of PKM and the application of Appropriate Technology (red onion/shallot slicing machine), it is hoped that the production process can be accelerated and the output of MSMEs increased. The tangible results have been delivered in the form of two Appropriate Technology machines to MSME partners, for the production of premium and Grade A/B/C fried shallots, with a production increase of 10 minutes per kg and a daily production of 40 kg. Based on data from the Fried Shallots MSMEs, the average profit increase over three months reached 118.04% (equivalent to 14.36 million rupiah). The highest profit increase was achieved in September 2024, reaching 125% (equivalent to 15.9 million rupiah). The lowest value in October 2024 reached 80.51% (equivalent to 12.26 million rupiah). This difference in value was mainly due to the fluctuating price of shallots as a raw material and market demand, which increased when prices fell and decreased when the price of fried shallots rose, thereby affecting the profits of MSMEs.
Aplikasi Mesin Pengayak Arang Tempurung Kelapa Guna Meningkatkan Produktivitas Di UD. Arang Tempurung Blitar Arif, Saiful; Rahmad, Hadi; Susanto, Riswan Eko Wahyu; Hamidah, Fitria Nur; Widyastuti, Ratna
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 6 No 1 (2022): Volume 6 Nomor 1 Tahun 2022
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v6i1.16742

Abstract

UD Arang Tempurung is a trading business engaged in the production of coconut shell charcoal and coconut shell charcoal powder. The sieving system is driven by a combustion motor which results in an unstable rotation. This affects the sieve yield and requires skilled personnel for treatment. The filter material is made of a material that is less corrosion resistant. The next problem is that workers have not used personal protective equipment (PPE) while working so they are vulnerable to respiratory diseases due to a polluted work environment. To overcome these problems, the PkM team designed problem solving with the following stages: (1) Problem mapping, (2) Problem solving, (3) Tool development, (4) Tool socialization (5) Partner Productivity Monitoring Evaluation (6) Safety and Health Socialization Work (K3). The use of a sifter with an electric motor is proven to reduce operating costs by up to 90%. In addition to operational costs that can be reduced, operating time per 1.3 tons of production also experiences an efficiency of up to 20%. The knowledge of partners regarding the operation of tools and the application of K3 at work has also increased. This is indicated by the application of the use of PPE including masks when working. Partners have also paid attention to the placement and use of work tools better by considering K3 factors.
PENERAPAN TEKNOLOGI DAN DIGITAL MARKETING PADA UMKM BRIKETKU ARANG BATOK KELAPA GUNA PENINGKATAN PRODUKTIVITAS USAHA Riswan Eko Wahyu Susanto; Agus Dani; Yohan Bahtiar; Miftakhul Huda; Setiyo Rojikin; Ahsin Fahmi Mubarok
Devote: Jurnal Pengabdian Masyarakat Global Vol. 4 No. 4 (2025): Devote: Jurnal Pengabdian Masyarakat Global, 2025
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/devote.v4i4.5119

Abstract

Based on data from the East Java Central Statistics Agency (BPS), coconut production in East Java province in 2022 was recorded at 231,934 tonnes. This data shows that East Java is one of the coconut production centres in Indonesia, which reached a national production of 2.87 million tonnes in the same year. However, the obstacles often faced by MSMEs are the limitations of the equipment and technology used in printing, drying and marketing briquettes. Most of the equipment and technology available today is still manual and unable to optimally meet production needs. One such MSME is Briket ‘Batu Bara’, located in Babadan Hamlet, Ngebrak Village, Gampengrejo Sub-district, Kediri Regency. With the available TTG briquette moulding machines and drying ovens, it is hoped that the production process can be accelerated and production output increased. The method used is the provision of tools/machines as well as assistance in the use of machines and digital marketing training for partners.The tangible results of this community service activity include an increase in productivity. Previously, manual production involved two stages, with the printing process followed by oven drying, taking 120 minutes per kilogram and yielding 40 kilograms of product per day. Now, the process takes 10 minutes less per kilogram, while product yield has increased to 40 kilograms per day. The predicted average profit increase is approximately 39.21%, while the average increase in rupiah is 1.034 million rupiah. Thus, the data for July 2025 and September 2025 shows a significant increase of 46.87%. This increase is attributed to the optimal utilisation of the machine developed through the PKM project, coupled with enhanced marketing efforts using digital marketing platforms such as ‘Shopee’.
Pengaruh Serat Agave Sisal Terhadap Kekuatan Impak dan Tekan Komposit Nilon Termoplastik Gliserol Riswan Eko Wahyu Susanto; Maskuri Maskuri; Saiful Arif
JURNAL TECNOSCIENZA Vol. 6 No. 1 (2021): JURNAL TECNOSCIENZA
Publisher : JURNAL TECNOSCIENZA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51158/tecnoscienza.v6i1.603

Abstract

Komposit SINIROL merupakan komposit berbahan serat sisal matriksnya nilon dan gliserol, yang diperoleh dari perbandingan komposisi kompositnya. SINIROL ini diharapkan dapat bermanfaat dan diaplikasikan sebaga material baru sebagai bahan alternatif, seperti gibsum sebagai penyangga tulang patah, polimer sintetis sebagai pelindung kepala, dan juga bisa difungsikan guna peralatan-peralatan kedokteran yang lain. Dalam metode penelitian ini komposisi komposit SINIROL dengan serat sisal sebesar 20%, 30%, dan 40% (m/v), dalam continues undirectional. Dengan perbandingan Nilon Termoplastik (gr) dan gliserol (mL) sebesar (1:0,3). Mesin uji impak Impact Tester (Hung-Ta) dengan spesimen impak ASTM D6110-10 dan uji tekan menggunakan Universal Testing Machine (UTM WDW-20) dengan spesimen tekan ASTM D695-15. Dari hasil penelitian diperoleh kekuatan Impak dan tekan tertinggi komposit SINIROL pada komposisi sisal 30% masing-masing besarnya 0,954 Joule/mm2 dan 104,16 N/mm2 , sedangkan pada komposisi persentase yang lain mengalami penurunan kekuatan. Hal ini menunjukan bahwa dengan bertambahnya serat sisal maka kekuatan impak dan kekuatan tekannya meningkat, akan tetapi jika melampaui nilai optimunya, kekuatannya menurun.Penurunan tersebut disebabkan ikatan antara matriks dan fillernya yang rendah serta dimungkinkan terjadinya mikroporositas disebabkan residual stress. Dapat disimpulkan bahwa penambahan serat sisal berpengaruh terhadap kekuatan impak dan kekuatan tekan komposit SINIROL. . Kata Kunci: Gliserol, Kekuatan Impak, Kekuatan Tekan, Nilon Termoplastik, Serat Agave Sisal
Implementasi CLAHE dan YOLOv11 untuk Pembacaan Pelat Nomor Kendaraan Beresolusi Rendah pada Raspberry Pi 5 Benni Agung Nugroho; Afta Ramadhan Zayn; Ellya Nurfarida; Riswan Eko Wahyu Susanto; Hadi Rahmad
Jurnal Minfo Polgan Vol. 15 No. 2 (2026): Artikel Penelitian
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/jmp.v15i2.16669

Abstract

Vehicle license plate recognition in bus fleets often faces obstacles due to small plate size, low image resolution, and poor contrast, making characters difficult to recognize. This study proposes a low-resolution bus license plate character reading system using the You Only Look Once version 11 (YOLOv11) model combined with the Contrast Limited Adaptive Histogram Equalization (CLAHE) method as a preprocessing stage in the inference process. The training dataset was developed from a combination of synthetic license plate images and low-resolution real vehicle license plate images. The model was trained using an NVIDIA A100 GPU for 500 epochs and implemented on a Raspberry Pi 5 as an edge device. Validation results show the model achieved a precision of 88.9%, a recall of 76.2%, an mAP@50 of 87.2%, and an mAP@50–95 of 53.4%. Testing on real vehicle license plate images shows that the application of CLAHE increases the success rate of character reading from 82.13% to 91.04% with a relatively small additional inference time. Furthermore, implementation on a Raspberry Pi 5 demonstrates that the model can be run efficiently with low resource usage, making it worthy of consideration as an Artificial Intelligence of Things (AIoT)-based Automatic Number Plate Recognition (ANPR) solution.
Co-Authors Abidatul Izzah Aditya Sandy Pratama Afta Ramadhan Zayn Agus Dani Agus Dani Ahmad Dony Mutiara Bahtiar Ahmad Dzulfikri Halimi Ahsin Fahmi Mubarok Asmoro, Wiwiek Kusumaning Bahtiar, Ahmad Doni Mutiara Benni Agung Nugroho Benni Agung Nugroho Benni Agung Nugroho, Benni Agung Choirul Hana Dani Supriyanto, Dani Deny Setiawan Ellya Nurfarida Enggar Galih Rohmad Robiyanto, Enggar Galih Rohmad Fauziyah Fauziyah Fitria Nur Hamidah, Fitria Nur Gita Novian Hermana Hadi Rahmad Hadi Rahmad Hiding Cahyono Indar Ahsani Bahriyan, Indar Ahsani Lourentya Gabriellis, Lourentya M. Ainul Hakim M. Rizky Setiawan, M. Rizky Maskuri Maskuri Miftakhul Huda Miftakhul Huda Moch. Ali Ridwan, Moch. Ali Moch. Fiky Frediansyah Mochamad Alfi, Mochamad Mohammad Cahyo Dwi Kurniawan, Mohammad Cahyo Dwi Putut Jatmiko Dwi Prasetio, Putut Jatmiko Dwi Ratna Widyastuti, Ratna Rico Anggriawan Rosanti, Aulia Dewi Saiful Arif Saiful Arif Setiyo Rojikin Setyo Rojikin Toga Aldila Cinderatama Tri Handayani Wiwiek Kusumaning Asmoro Yohan Bahtiar Yohan Bahtiar Yohan Bakhtiar Yulia Puspa Dewi