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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology Jurnal Teknologi Dan Industri Pangan Jurnal Teknologi Industri Pertanian Agromet Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Jurnal Manajemen dan Agribisnis Forum Pasca Sarjana Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Ilmu Komputer dan Informasi SOCA: Jurnal Sosial Ekonomi Pertanian Jurnal Ilmu Lingkungan Jurnal Manajemen Teknologi Jurnal Keteknikan Pertanian TELKOMNIKA (Telecommunication Computing Electronics and Control) Dinamika Pendidikan Jurnal Ilmu Komputer dan Agri-Informatika JURNAL ANALISIS KEBIJAKAN KEHUTANAN Al-Iqtishad : Jurnal Ilmu Ekonomi Syariah (Journal of Islamic Economics) Agrointek Journal of Economics, Business, & Accountancy Ventura Indonesian Journal of Business and Entrepreneurship (IJBE) Jurnal Pengembangan Kota Sinergi Journal of Degraded and Mining Lands Management Journal of Regional and City Planning Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Riset Industri agriTECH JURNAL MITRA SWARA GANESHA Jurnal Teknobisnis Jurnal Aplikasi Bisnis dan Manajemen (JABM) E-Journal Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Jurnal Tataloka Jurnal Industri Hasil Perkebunan MIX : Jurnal Ilmiah Manajemen Economic Education Analysis Journal Jurnal Ilmiah Ekonomi Islam Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri JURNAL MANAJEMEN INDUSTRI DAN LOGISTIK Applied Information System and Management Jurnal Sisfokom (Sistem Informasi dan Komputer) Muqtasid: Jurnal Ekonomi dan Perbankan Syariah International Journal of Supply Chain Management JIEMS (Journal of Industrial Engineering and Management Systems) Jurnal Kebijakan Sosial Ekonomi Kelautan dan Perikanan Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat JURNAL PANGAN Jurnal Bisnis dan Kewirausahaan JURNAL SUMBER DAYA AIR Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Budimas : Jurnal Pengabdian Masyarakat International Journal of Seocology International Journal of Marine Engineering Innovation and Research Jurnal Penyuluhan Pertanian Jurnal Pariwisata Indonesia Prosiding Seminar Nasional Sisfotek (Sistem Informasi dan Teknologi Informasi) JURNAL TEKNIK INDUSTRI Journal of Business, Social and Technology International Journal of Renewable Energy Development Policy Brief Pertanian, Kelautan, dan Biosains Tropika Jurnal Ekonomi Bisnis dan Kewirausahaan Jurnal Desiminasi Teknologi Jurnal Ragam Pengabdian Jurnal Ilmiah Teknologi Pertanian Agrotechno
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Strategi Penguatan Kelembagaan Koperasi Perikanan Untuk Hilirisasi Berorientasi Pasar: Studi Kasus Koperasi Mina Muara Sejahtera Donnie Aqsha; Marimin Marimin; Eko Ruddy Cahyadi
Jurnal Kebijakan Sosial Ekonomi Kelautan dan Perikanan Vol 16, No 2 (2026): Desember 2026 (Article in Press)
Publisher : Balai Besar Riset Sosial Ekonomi Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jksekp.v16i2.18887

Abstract

Pelibatan kelembagaan koperasi pada berbagai program strategis nasional di tengah rendahnya kontribusi ekonomi dan pemanfaatan kelembagaan koperasi dalam industri perikanan tangkap, menimbulkan pertanyaan bagaimana koperasi dapat meningkatkan taraf hidup nelayan melalui hilirisasi perikanan berorientasi pasar. Penelitian ini bertujuan untuk mengetahui faktor internal dan eksternal Koperasi Perikanan, model konseptual, serta strategi yang diperlukan untuk penguatan kelembagaan koperasi perikanan untuk hilirisasi berorientasi pasar. Menggunakan pendekatan Soft System Methodology (SSM), dipadu dengan kerangka VRIO dan PESTLE untuk identifikasi faktor internal dan eksternal, metode Interpretive Structural Modeling (ISM) untuk menyusun model konseptual, dan Analytic Hierarchy Process (AHP) untuk menentukan strategi. Hasil penelitian menunjukkan bahwa pengelolaan organisasi bisnis hilirisasi dan pelaksanaan pendidikan bagi anggota merupakan faktor internal, sedangkan kondisi TPI dan kawasan pelabuhan merupakan faktor eksternal utama yang menjadi kelemahan dan ancaman dalam kemampuan koperasi perikanan untuk hilirisasi. Sub elemen kunci dalam pengembangan organisasi bisnis hilirisasi yaitu perbaikan TPI dan penataan kawasan pelabuhan, penetapan model organisasi yang tepat, dan identifikasi target pasar potensial. Strategi penguatan kelembagaan koperasi diprioritaskan pada perluasan akses pasar, peningkatan kapasitas SDM dan penguatan sumber bahan baku untuk mengembangkan produk ikan fillet beku sesuai kebutuhan industri pengolahan dan pemasok program Makan Bergizi Gratis (MBG). Pada implementasinya, pemerintah melalui Kementerian Koordinator Bidang Pangan dapat mengkoordinasikan pelaksanaan program strategis nasional dengan melibatkan kementerian terkait. Penguatan kelembagaan koperasi perikanan diharapkan mampu menghasilkan produk olahan perikanan berkualitas untuk memenuhi permintaan pasar. Title: Institutional Strengthening Strategies For Fisheries Cooperatives in Market-Oriented Downstreaming: A Case Study of the Mina Muara Sejahtera CooperativeThe involvement of cooperative institutions in various national strategic programs, amid the low economic contribution and limited utilization of cooperatives in the capture fisheries industry, raises the question of how cooperatives can improve fishers’ livelihoods through market-oriented downstreaming. This study aims to identify the internal and external factors of fisheries cooperatives, develop a conceptual model, and formulate strategies required for institutional strengthening to support market-oriented downstreaming. The research employs a Soft Systems Methodology (SSM), combined with the VRIO and PESTLE frameworks to identify internal and external factors, Interpretive Structural Modeling (ISM) to construct the conceptual model, and Analytic Hierarchy Process (AHP) to determine strategic priorities. The findings reveal that business downstreaming management and member education are key internal factors, while the condition of fish landing sites (TPI) and port areas represent major external weaknesses and threats to cooperative downstreaming capacity. Key sub-elements in developing downstreaming business organizations include improving fish landing sites and port area management, establishing appropriate organizational models, and identifying potential target markets. Institutional strengthening strategies are prioritized on expanding market access, enhancing human resource capacity, and securing raw material supply to develop frozen fish fillet products that meet the needs of processing industries and the Free Nutritious Meal (MBG) program. In practice, the government, through the Coordinating Ministry for Food Affairs, can coordinate the implementation of national strategic programs by involving relevant ministries. Strengthening fisheries cooperatives is expected to produce high-quality fishery products that meet market demand.
Systematic Literature Review of Competitive Advantage and Marketing Capability of Small Medium Enterprises (SMEs) Hanny Nurlatifah; Asep Saefuddin; Marimin Marimin; Heny Suwarsinah
Journal of Economics, Business, and Accountancy Ventura Vol. 24 No. 2 (2021): August - November 2021
Publisher : Universitas Hayam Wuruk Perbanas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14414/jebav.v24i2.2797

Abstract

The discussion about the formation of competitive advantage in work organizations such as SMEs is still not widely discussed. The current literature still discusses marketing activities in general, not specifically for SMEs. This article aims to find out the factors that influence SMEs' competitive advantage and marketing capabilities. The literature review method systematically uses three stages. First planning for selecting source articles, second implementing and reporting stage. The PRISMA Literature Review Model selects articles and data visualization using VOS Viewer software. The findings of this article are the related potential relationships between marketing capabilities as forming competitive advantages for small and medium enterprises. Eleven topics are frequently discussed in a collection of journals, and the dominant words are sustainable marketing orientation, marketing, and Company Performance. The three groups can be grouped into personality development, business management, and abilities. Differences in the types of business groups and business sizes as differentiators of business performance results are not widely seen in article searches. These findings suggest further research to examine business groups' role and size in determining SMEs' competitive advantage and marketing capabilities.
Design of traceability system models for potato chips agro-industry based on fuzzy system approach Ririn Regiana Dwi Satya; Eriyatno Eriyatno; Andes Ismayana; Marimin Marimin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 20, No 4: August 2022
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v20i4.23316

Abstract

Identification of recorded information is the most important requirement for developing an effective traceability system. This paper aimed to develop an information technology (IT)-based traceability system combined with an intelligent system in potato chips agro-industry. In this paper, we present a business process in potato chips agro-industry which consists of three activities, i.e. raw materials receiving, processing, and warehousing of final products. First of all, a traceability system architecture was developed. To develop computational models, quality, food safety and environment criteria using fuzzy inference system (FIS) and adaptive neuro fuzzy inference system (ANFIS), and intelligent decision support system (IDSS) traceability model using android front end. An internal information capture point was identified for each step and corresponding traceability information to be recorded was determined. Furthermore, a prototype IDSS was developed to represent method of information modeling on products, processes, quality, and transformation at each node in potato chips agro-industry. In this study, intelligent systems have been developed for decision making in quality control good agricultural practices.
Peningkatan Adopsi Teknologi untuk Menurunkan Nilai Susut Pascapanen pada Rantai Pasok Buah Manggis Diyah Ratna Fauziana; Marimin; Heny Kuswanti Suwarsinah; Eko Agus Prasetio
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol. 6 No. 2 (2024): Policy Brief Pertanian, Kelautan dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0602.889-895

Abstract

Salah satu masalah yang dihadapi rantai pasok buah manggis adalah nilai susut pascapanennya yang tinggi, yaitu 37% yang mengurangi produktivitas rantai pasok dan pendapatan para pelaku rantai pasoknya. Selain itu, nilai susut yang tinggi juga berdampak negatif pada aspek sosial dan lingkungan, sehingga mengganggu keberlanjutan rantai pasok manggis. Pada aspek sosial, rendahnya pendapatan pelaku rantai pasok berdampak tidak langsung pada peningkatan kemiskinan. Sedangkan pada aspek lingkungan, produktivitas yang rendah mendorong dilakukannya ekstensifikasi lahan dengan pembukaan lahan baru yang dapat merusak ekosistem lingkungan. Berdasarkan penelitian terdahulu, teknologi yang digunakan di sepanjang rantai pasok pangan terbukti dapat menurunkan nilai susut; tetapi penggunaan teknologi pada rantai pasok buah manggis di Indonesia, khususnya pada Provinsi Jawa Barat sebagai penghasil buah manggis terbesar, masih perlu ditingkatkan. Intervensi peningkatan adopsi teknologi untuk menurunkan nilai susut pascapanen diperlukan, mengingat tidak semua pelaku rantai pasok dapat melakukan adopsi teknologi secara mandiri. Dari berbagai alternatif inisiatif intervensi, kolaborasi melalui kemitraan merupakan inisiatif yang dapat meningkatkan adopsi teknologi dan menurunkan nilai susut pascapanen dalam jumlah yang signifikan (lebih dari 50%). Hal ini sesuai target Sustainable Development Goals (SDG) 12.3, yaitu menurunkan nilai food loss dan food waste pada rantai pasok pangan, minimal sebesar 50% di tahun 2030
Input-output evaluation of kenaf biomass utilization for upstream supply chain optimization in agroindustry Nunung Nurhasanah; Marimin Marimin; Machfud Machfud; Muhammad Romli
AGROINTEK Vol 20, No 2 (2026)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v20i2.31249

Abstract

Hibiscus cannabinus L. emerged as a promising natural fiber crop in Indonesia, offering significant value-added potential across its biomass components—bast, stem core, leaves, and seeds. This study presented a comprehensive value-added analysis along the upstream and midstream supply chain networks of the kenaf agroindustry. The research specifically focused on optimizing the upstream supply chain by evaluating the economic contribution of each biomass component and identifying opportunities for full biomass utilization. The Input-Output method from Indonesia’s Central Statistics Agency (BPS) was applied, along with a sensitivity analysis on market pricing scenarios. The results revealed that, for each hectare of cultivation, optimized utilization of kenaf components yielded an added value of IDR31,357,322 in the upstream network and IDR130,309,594 in the midstream traditional textile production. Notably, the incorporation of stem core (KCC and KCP), seed oil, and fermented leaf-based animal feed contributed to a 21.67% increase in upstream added value, alongside a 17.65% rise in farmers’ income. These findings demonstrated the potential for upstream supply chain optimization through low-tech, full biomass processing, supported Indonesia’s competitiveness as a global kenaf supplier, and highlighted the need for institutional frameworks to enable scale-up and sustainability.
From Participation to Legislative Knowledge: A Bibliometric Review of E-Participation Research in Legislative Institutions Rahayu Yuni Susanti; Marimin; Dikky Indrawan; Nur Hasanah
Applied Information System and Management (AISM) Vol. 9 No. 1 (2026): Applied Information System and Management (AISM)
Publisher : Depart. of Information Systems, FST, UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/aism.v9i1.50289

Abstract

This study provides a comprehensive science map of e-Participation research in legislative institutions, addressing the fragmentation and lack of connection between citizen input and internal knowledge management. The purpose is to map the field's intellectual structure, evaluate the traceability of citizen inputs into parliamentary outputs, and identify strategic research gaps. Using the SPAR-4-SLR framework and PICOS-based screening, 41 empirical journal articles were selected from the Scopus database for bibliometric analysis using Bibliometrix and VOSviewer. Findings indicate that the field is dominated by European contexts and grounded in participation theory, institutional implementation, and behavioral adoption models. While recent trends show an increasing focus on advanced analytics and artificial intelligence, existing literature fails to explain how e-Participation mechanisms integrate with internal knowledge management. Specifically, there is no standardized metric to trace citizen input from initial submission to final committee recommendations or legislative amendments. This study contributes by offering an integrated scientific map tailored to legislative settings and proposing the Legislative Knowledge Transformation Model (LKTM). This model provides strategic guidance and practical indicators to strengthen evidence-based and transparent legislation. By establishing a reproducible pipeline for managing participatory data, the research paves the way for comparative validation in developing countries to enhance parliamentary oversight and institutional legitimacy. 
Professional Communication Education: Culture, Digital Ethics, and AI for Indonesia Migrant Workers in Japan Amalina, Husna Nur; Adika, Dimas; Marimin; Wikandhita, Kennia; Nastiti Sandyaningrum, Juairiah; Eka Timbul Prayoga, Dedy; Rovianto, Eki; Setyaningrum, Desy; Adela Fatsena, Rizka; Maulana Yoeseph, Nanang; Ditya Nugroho, Hengky
Jurnal Ragam Pengabdian Vol. 3 No. 2 (2026): Mei-Agustus, Sustainable Development Goals (SDGs): Multidisciplinary Perspectiv
Publisher : Lembaga Teewan Journal Solutions

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62710/6v5s3f94

Abstract

Indonesian migrant workers (PMI) in Japan often face professional communication barriers due to cultural differences, language barriers, and digital literacy requirements. This community service program aims to equip members of PERMA UTLLN Japan and Indonesian migrant workers with professional communication skills, cross-cultural communication skills, digital ethics, and the use of Artificial Intelligence (AI) through a mixed-method approach consisting of interactive webinars, case studies, and simulations via Zoom. Data from observations and discussions were evaluated using qualitative descriptive analysis techniques through thematic categorization. The program results demonstrated an increase in understanding of assertive communication in the workplace, a reduction in the risk of culture shock through the philosophy of omotenashi, and the acceleration of ethics-based digital literacy in utilizing AI as a communication assistant. In conclusion, the integration of communication training and applied technology literacy significantly enhances the adaptive capacity, career performance, and work-study balance of student-workers abroad. The novelty of this program lies in the reconstruction of an interdisciplinary training curriculum that simultaneously combines cross-cultural intelligence with practical AI skills—a new blend of competencies that has never been implemented in conventional migrant worker support programs.
Co-Authors . Abidin A Sukmawati A. Aman Damai A. Haris Rangkuti A.A. Ketut Agung Cahyawan W Abieta Fellyanti Bhuwana Putri Adang Samsudin S. Ade Putri Priliyan Adela Fatsena, Rizka Adhi Wibisono Adika, Dimas Agung Pramono Alex Denni Alfian Nur Ubay Alim Setiawan S Alim Setiawan Slamet Alin Budiani Risky, Alin Budiani Amad Saeroji Amalina, Husna Nur Aminah, Mimin Amril Aman Andes Ismaya Andes Ismayana Andrayani, Dian Andreas Murti Ani . Ani . Annisa Marshanda Rahmawati Aria Damar Arief Daryanto Arief Witjaksono Arif Imam Suroso ASEP SAEFUDDIN Aslam Mei Nur Widigdo Asma Assa Asrol, Muhammad Asti Krisnawati Aziz Ikhsan Bachtiar Baehaqi Bambang Haryanto Bambang Kanti Laras Batubara, Siti Chairiyah Bayu Ardy Kresna Betaubun, Kamilius D Budi Dharmawan Budi Indra Setiawan Bunasor Sanim Bura, Romie O. Candra Tri Cahyono Citra Ayu Vemilia Cory Trisilawaty Dadan Kusdiana Danang Rusdianto Darsasa Herdiana Anggriyanto Dedy Sugiarto Deria Adi Wijaya Dian Ratna Sari Diem, Daisy Ade Riany Dikky Indrawan Dikky Indrawan Ditdit N Utama Ditya Nugroho, Hengky Diyah Ratna Fauziana Djati Kerami Donnie Aqsha Dony Rahmad Pranoto Dyah Kusuma Wardani Dyah R Panuju Dyah Retno Panuju E. Gumbira-Sa’id Eka Timbul Prayoga, Dedy Eko Agus Prasetio Eko Ruddy Cahyadi Elisa Anggraeni Emmy Darmawati Endang Karlina Eriyatno Eriyatno Erliza Hambali Erliza Noor Erna Rusliana Ernan Rustiadi Erni Krisnaningsih Erwin Hermawan Etty Riani Fany Annisa Agusti Faqih Udin Faqih Udin FARAH FAHMA Fina Pradika Putri Fitri Insani Gendut Suprayitno H Hardjomidjojo Hadi Samanto Hamzah Hamzah Hamzah Hamzah Handaya Handaya Hanik Fatona Ernawati Hanny Nurlatifah Hari Eko Irianto Haris, Abdul Harison Hartrisari Hardjomidjojo Hendra Adiyatna Hendro Sasongko Heny Kuswanti Suwarsinah Heny Suwarsinah Herry Purnomo Herry Susanto Heti Mulyati Heti Muspitawati I Gusti Ayu Indira Maharani I Wayan Nurjaya I.F. Poernomosidhi Poerwo Idqan Fahmi Iin Emy Prastiwi, Iin Emy Illah Sailah Imam Santoso Imam Teguh Saptono Imam Teguh Saptono Indah Yuliasih Iphov Kumala Sriwana Irawadi Jamaran Irfan Syauqi Beik Janti G Sujana Joko Sadoso Priyo K Mudikdjo Kamilius Deleles Betaubun Kasutjaningati Kasutjianingati Kasutjianingati Khotijah Kudang B. Seminar Kudang Boro Seminar Kusnandar . L. Haditjaroko Liesbetini Haditjaroko LILIK BUDIPRASETYO Luky Adrianto M Arif Darmawan M Bismark M S Maarif M Syamsul Ma’arif M. Syamsul Maarif M. Zein Nasution Machfud Machfud Machfud Machfud Machfud Machfud, . Mahendra Wijaya Mangara Tambunan Maulida Hayuningtyas Mei Edi Prayitno Mei Edi Prayitno Mennofatria Boer mira juwita mira juwita, mira Moh. Yani Muhamad Malik Gunawan Muhammad Alkaff Muhammad Arif Darmawan Muhammad Asrol Muhammad Hasjim Bintoro Djoefrie Hasjim Bintoro Djoefrie Muhammad Iqbal Muzakki Muhammad Nanda Rahadiansyah Muhammad Panji Islam Fajar Putra Muhammad Romli Muhammad Romli dan Suprihatin Andes Ismayana Muji Yuswanto Mursiti Mursiti Muslich . Muslich . N S Indrasti Nabila Fatin Zulna Nailul Hana, Nailul Nanang Maulana Yoeseph Nastiti Sandyaningrum, Juairiah Nova Oktavia Noveria Sjafrina Nunung Nurhasanah Nur Hasanah Nurul Maghfiroh Nusantara, Reinaldy Jalu P. Eko Prasetyo Padmoko, Sri Petir Papilo Pujihartati, Sri Hilmi Putra, Fiqhri Mulianda Putranto, Kartiko Eko Raden Mohamad Herdian Bhakti Rahardjo, Sri Rahayu Yuni Susanti Rico Rizal Budidarmo Rika Ampuh Hadiguna Rina Oktaviani Ririn Regiana Dwi Satya Rizal Bahara Rochman Marota Rohayati Rohayati Suprihatini Rohmah, Kholifatul Kurnia Rohmatulloh . Rohmatulloh Rohmatulloh Rohmatulloh Rohmatulloh Rovianto, Eki Ruchyat Deni Djakapermana Rukmayadi, Dede Rusdah Rusdah S.D. Tarigan Safriyana Safriyana Salis Deris Artikanur Sambas Sundana Santun R.P. Sitorus Santun R.P. Sitorus Santun R.P. Sitorus Santun R.P. Sitorus Sapta Raharja Sari, Dian Ratna SATRIYAS ILYAS Seppa Septarianes Setyaningrum, Desy Sitanggang, Imas S. Slamet Hariadi Soesilo Wibowo Soesilo Wibowo Sony Hartono Wijaya Sri Hilmi Pujihartati Sri Laksmi Pardanawati Sri Martini Sri Rahardjo Sri Wahjuni Sudarsana Sudarsana Sudarsana Sugeng Budiharsono Sugiarto Suharjito Suharjito Suharjito Suharjito Suharto Suharto Honggokusumo Sukardi . Sukardi Sukardi Sukardi Sukardi Sukardi Sukardi Sumadi Sumino Suprihatin Suprihatin Suprihatin Suprihatin Suria Darma Tarigan Surjono H. Sutjahjo Surjono H. Sutjahjo Syamsu Hadi Syamsul Ma’arif Syarif Hidayat Syarif Hidayat Syarif Hidayat Tajuddin Bantacut Taryono Taryono Prayitno Taryono, Taryono Taufik Djatna Taufik Djatna Teniwut, Wellem Anselmus Tho'in, Muhammad Tira Nur Fitria, Tira Nur Titi Candra Sunarti Tomi Agfianto Tomy Perdana Toto Haryanto Uhendi Haris Vemilia, Citra Ayu Veybi Djoharam Veybi Djoharam W. Septiani Wahyu Adi Guna Wahyu Trisnasari Wicaksono Sarwo Edi Widadi W. Widayat Widiatmaka Wikandhita, Kennia Winnie Septiani Witjaksono, Arief - Yandra Akreman Yandra Arkeman Yani Hendriyani Yekti Prasetyasni, Yekti Yosini Deliana Yudi Setiawan Yusianto Rindra Yusmiati Yusmiati Yustin Henina Oktaviani Zaqi Kurniawan Zulfa Khoirul Ummah Zulkarnain