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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE) Inersia : Jurnal Teknik Sipil dan Arsitektur Transmisi: Jurnal Ilmiah Teknik Elektro KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Ganendra: Majalah IPTEK Nuklir TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Kepelatihan Olahraga Jurnal Mahasiswa TEUB Jurnal Teknologi Rekayasa Mesin Jurnal EECCIS REKAYASA e-Jurnal Arus Elektro Indonesia Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Jurnal Kelautan Nasional JISIP: Jurnal Ilmu Sosial dan Pendidikan Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Jurnal Ekonomi Manajemen Sistem Informasi JIIP (Jurnal Ilmiah Ilmu Pendidikan) Frontier Energy System and Power Engineering JURNAL HOSPITALITI DAN PARIWISATA SPRINTER: Jurnal Ilmu Olahraga PROFICIO: Jurnal Pengabdian Masyarakat juremi: jurnal riset ekonomi Jurnal Bina Pengabdian Kepada Masyarakat Jurnal Nasional Teknik Elektro dan Teknologi Informasi SinarFe7 Jurnal INFOTEL Journal of Built Environment Studies El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis INTERNATIONAL JOURNAL OF SOCIETY REVIEWS (INJOSER)
Wijono
Teknik Elektro Universitas Brawijaya Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences 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 Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Analysis of Rotor-Side Control and Grid-Side Controls for Grid Voltage Improvement in a DFIG-Based Wind Turbine System Alsabah, Mus Ali; Rini Nur Hasanah; Wijono; Corina Martineac
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 17 No. 2 (2023)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v17i2.1651

Abstract

Wind Power Plant (PLTB) has received a lot of attention from the public, researchers, and the government because of its advantages and role in reducing the causes of environmental damage due to the generation of electrical energy. Unlike power plants that use primary energy from fossil fuels, PLTB uses wind kinetic energy to generate electricity. Many problems arise because the wind speed is always changing every time. The resulting output voltage instability in the generator can affect the electric power system where the output electricity of the generator is injected. This paper describes how to analyze the generator output voltage control at PLTB. The generator used is a type of induction generator with two inputs (Double-Fed Induction Generator, DFIG). while the method of analysis is carried out using the PSIM simulation tool from Powersim, Inc. Control is carried out both on the rotor side (Rotor Side Converter, RSC) and on the grid side (Grid Side Converter), with the aim of maintaining the output voltage injected into the power grid with a certain level of voltage oscillation. The control results show that the generator output voltage can be maintained as desired.
DE-Optimized Hybrid ARIMA-LSTM for Long Term Electricity Load Forecasting Mardotillah, Nanda Azizah; Hasanah, Rini Nur; Wijono
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 19 No. 2 (2025)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v19i2.1813

Abstract

Accurate long-term electricity load forecasting was essential for efficient energy planning and infrastructure development. This study addressed forecasting challenges in rapidly growing regions, such as East Java, where electricity demand was influenced by both linear and non-linear patterns. Conventional forecasting models, such as the Autoregressive Integrated Moving Average (ARIMA) effectively captured linear trends but failed to model non-linear dynamics, whereas networks with Long Short-Term Memory (LSTM) excelled with non-linear data but were often less effective when used alone. This research developed and evaluated an ARIMA-LSTM hybrid model optimized with the Differential Evolution (DE) algorithm to forecast electricity load until 2026. The model was trained and validated using historical daily load data from 2021 to 2023 from PT PLN UP2B East Java. This hybrid methodology first used ARIMA to model the linear components of the time series. The resulting residual errors, which contained non-linear patterns, were then modeled using an LSTM network. The DE algorithm was used to automatically optimize hyperparameters for both the ARIMA (p, d, q) and LSTM (units, learning rate, drop out etc.) components. The suggested hybrid model's performance was contrasted with that of the independent LSTM and ARIMA models. The results showed that the DE-optimized hybrid model achieved higher accuracy, yielding a Mean Absolute Percentage Error (MAPE) of 3.97 %, which was significantly better than the ARIMA model (12.39 % MAPE) and the LSTM model (4.50 % MAPE) on the validation set. According to these results, the suggested hybrid model was a dependable and extremely accurate instrument for predicting long-term loads, offering a solid basis for strategic energy planning.
Modeling and simulation of klystron-modulator for linear accelerators in PRTA Wijono, Wijono; Arthanto, Dwi Handoko; Setiaji, Galih; Saputra, Angga Dwi; Taufik, Taufik; Harto, Andang Widi
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp1822-1831

Abstract

Approximately 70% of commercial industries worldwide use electron accelerator technology for various irradiation processes. The advantages of irradiation processes compared to thermal and chemical processes are higher output levels, reduced energy consumption, less environmental pollution, and producing superior product quality and having unique characteristics that cannot be imitated by other methods. Research Center for Accelerator Technology (PRTA), BRIN, Indonesia is developing standing wave LINAC (SWL) for food irradiation applications at S-band frequencies (±2856 MHz), electron energy of 6-18 MeV, and an average beam power of 20 kW. This paper aims to model, simulate, and analyze the klystron modulator in the RF linear accelerator (LINAC). The klystron modulator is the main component of the RF LINAC, which functions to supply klystron power with the order of megawatt peak DC, so that the klystron can amplify the low-level RF signal from the RF driver into a high-power RF signal with a power of 2-6 MW peak. The klystron modulator modeling is carried out based on mathematical modeling, then simulated using LTspice to analyze the system performance of the klystron modulator. The results of the klystron modulator modeling simulation show stable system performance and dynamic response. So that it meets the specifications of the 6-18 MeV SWL LINAC being developed by PRTA-BRIN.
Pengaruh Live Streaming, Affiliate Marketing, dan Perceived Price terhadap Purchase Decision yang Dimediasi oleh Customer Trust pada TikTok Shop: Studi pada Mahasiswa Aktif Universitas Proklamasi 45 Tria Lady Sijabat; Djoko Wijono
Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis Vol. 2 No. 2 (2025): Desember : Prosiding Seminar Nasional Ilmu Manajemen Kewirausahaan dan Bisnis
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/prosemnasimkb.v2i2.186

Abstract

This study aims to examine the influence of live streaming, affiliate marketing, and perceived price on purchase decisions with customer trust as a mediating variable among students of Universitas Proklamasi 45. This study used a quantitative approach with a purposive sampling technique to determine 100 respondents relevant to the research criteria. The research instrument in the form of a structured questionnaire was distributed to obtain primary data, then analyzed using the Partial Least Squares (PLS) path model as a statistical analysis method. The results showed that the variables of live streaming, affiliate marketing, and perceived price simultaneously had a positive and significant effect on customer trust. Furthermore, customer trust was proven to have a significant influence on purchase decisions, thus understanding that customer trust is an important factor in driving purchase decisions. However, other results showed that live streaming did not directly influence purchase decisions. However, when mediated by customer trust, the influence of live streaming on purchase decisions became significant. These findings provide theoretical contributions to the development of digital marketing science, particularly in understanding the mediating role of customer trust in consumer behavior. In addition, practical implications for business actors are the importance of building consumer trust through live streaming strategies, affiliate marketing, and appropriate price offers to improve purchase decisions.
CITRA MEREK SEBAGAI MEDIASI KUALITAS PRODUK TERHADAP KEPUTUSAN PEMBELIAN SEPEDA MOTOR HONDA DI SLEMAN Sri Ekanti Sabardini; Djoko Wijono
Juremi: Jurnal Riset Ekonomi Vol. 3 No. 4: Januari 2024
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/juremi.v3i4.7329

Abstract

Penelitian ini dilakukan untuk mengetahui apakah Citra Merek menjadi variabel mediasi antara Kualitas Produk dan Keputusan Pembelian. Isu kualitas produk menjadi perbincangan hangat pada pembelian sepeda motor dan perusahaan selalu membuat iklan agar citra merek menguat, sehingga penting diketahui apakah hal ini berpengaruh terhadap Keputusan Pembelian sepeda motor. Penelitian dilakukan pada 99 responden, dengan metode pengambilan sampel purposive. Digunakan alat analisis Smart PLS 4.0 untuk mengetahui hubungan antar variabel. Hasil penelitian menunjukkan bahwa Citra Merek tidak bisa memediasi Kualitas Produk dan Keputusan Pembelian
Analisis Tingkat Pemahaman Wasit dan Juri Pencak Silat Kabupaten Ponorogo Pada Peraturan Terbaru Anik Tri Wahyuningtyas; Achmad Rizanul Wahyudi; Andri Suyoko; Wijono, Wijono; Waristra Tyo Nirwansyah
SPRINTER: Jurnal Ilmu Olahraga Vol. 5 No. 1 (2024): SPRINTER: Jurnal Ilmu Olahraga
Publisher : MAN Insan Cendekia Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46838/spr.v5i1.476

Abstract

Dalam beberapa tahun terakhir ini terdapat pergantian peraturan pertandingan pencak silat diantaranya yaitu peraturan Persilat tahun 2021 dan peraturan IPSI terbaru tahun 2023. Penelitian ini bertujuan untuk mendeskripsikan tingkat pemahaman wasit dan juri Kabupaten Ponorogo terhadap peraturan pertandingan pencak silat terbaru kategori tanding. Penelitian ini mengunakan pendekatan deskriptif kuantitatif melalui penggunaan metode survei serta rancangan penelitiannya yaitu non-eksperimen. Sasaran penelitian ini ialah wasit dan juri Kabupaten Ponorogo dengan jumlah sampel 15 responden. Peneliti menggunakan kuesioner dengan skala Guttmen sebagai alat pengumpulan data dan uji validasi angket menggunakan Korelasi Pearson pada program SPSS serta uji reliabilitas menggunakan teknologi SPSS Cornbach Alpha dengan batasan angka 0.6 hingga diatas 0.8. Teknis analisis data menggunakan perangkat lunak ilmu sosial (SPSS). Hasil penelitian menunjukan peraturan pertandingan pencak silat terbaru kategori tanding sebesar 71,4%. Capaian pemahaman wasit dan juri Kabupaten Ponorogo dengan persentase 71,4% berada dalam kategori tinggi. Secara keseluruhan wasit dan juri di kabupaten Ponorogo memiliki pemahaman yang baik terhadap peraturan dan protokol dalam penyelenggaraan pertandingan pencak silat.
Analisis Etika Bisnis Islam dalam Transaksi Jual Beli Online di Indonesia D Purnomo; Teguh Lesmana; Fitri Novilia; Djoko Wijono; Asri Ady Bakri
El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam Vol. 5 No. 11 (2024): El-Mal: Jurnal Kajian Ekonomi & Bisnis Islam
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/elmal.v5i11.5641

Abstract

The development of the world of technology and increasingly advanced internet networks has an impact on people's consumption techniques, thus giving rise to new shopping channels, namely online. People's need for fast information is very easy, can be accessed by anyone, anytime and anywhere. Internet technology has a very big effect on trade or business. Can access information on goods from anywhere, both from prices, specifications, and making purchase transactions. The purpose of this study is to analyze Islamic business ethics in online buying and selling transactions in Indonesia. This research approach collects data through literature studies, which involve reading literature from various sources including books, journals and reports using qualitative and deductive approaches. The findings in this study are that the application of Islamic business ethics in online buying and selling transactions in Indonesia has not been fully implemented, because there are still some sellers who violate the principles of Islamic business ethics. One example is that there are still some sellers who provide escorts or summaries so that the goods received by the buyer do not match the specifications, the seller does not respond to goods complained about by the buyer, and there are still sellers who do not accept returns.
Implementasi Penerapan Sport Science dalam Penyusunan Perencanaan Program Latihan untuk Meningkatkan Kompetensi Pelatih serta Prestasi KONI Kota Kediri Rizky Muhammad Sidik; Dio Alif Airlangga Daulay; Wijono; Donny Ardi Kusuma; Tutur Jatmiko; Muhammad Kharis Fajar; Tri Setyo Utami
Jurnal Bina Pengabdian Kepada Masyarakat Vol 6 No 1 (2025): Jurnal Bina Pengabdian Kepada Masyarakat
Publisher : Sekolah Tinggi Olahraga dan Kesehatan Bina Guna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55081/jbpkm.v6i1.4597

Abstract

Penguasaan sport science merupakan kebutuhan mutlak dalam meningkatkan kualitas pembinaan olahraga prestasi. Program pengabdian kepada masyarakat (PKM) ini bertujuan untuk mengimplementasikan penerapan sport science dalam penyusunan perencanaan program latihan bagi pelatih cabang olahraga binaan KONI Kota Kediri, sebagai persiapan menghadapi Pekan Olahraga Provinsi (Porprov) Jawa Timur 2025. Kegiatan diikuti oleh 55 pelatih dari 46 cabang olahraga, dengan metode pelatihan berbasis workshop, praktik tes pengukuran kondisi fisik, analisis hasil pengukuran, serta konversi data menjadi program latihan berbasis komputerisasi. Hasil kegiatan menunjukkan adanya peningkatan kompetensi pelatih dalam memahami konsep sport science, keterampilan analisis data, serta kemampuan menyusun program latihan periodisasi menggunakan perangkat digital. Implikasi kegiatan ini mendukung peningkatan prestasi atlet KONI Kota Kediri secara lebih sistematis dan terukur.
THE INFLUENCE OF TRUST IN SUPERIORS ON EMPLOYEES' TRUST IN THE COMPANY WITH JOB EMBEDDEDNESS AS A MODERATING VARIABLE Mochammad Isa Anshori; Rieneke Ryke Kalalo; Djoko Wijono; Jemadi; Dicki Bagus Chandra
INTERNATIONAL JOURNAL OF SOCIETY REVIEWS Vol. 3 No. 9 (2026): INTERNATIONAL JOURNAL OF SOCIETY REVIEWS (INJOSER)
Publisher : Adisam Publisher

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

Abstract

This study is a quantitative study with an explanatory approach, namely an approach that uses previous research as the main reference which is then decorated and varied so that it is different from previous research. The data used in this study is quantitative data that researchers obtained from 350 Samsung Smartphone employees spread throughout Indonesia. The data was analyzed using the smart PLS 4.0 analysis tool. The result in this article show that the hypothesis used in this article, namely the variable Trust in Superiors, does not have a positive relationship direction and a significant influence because the P- Values are not below the significance level of 0.05, namely 0.52. This can be caused because not only Trust in Superiors can affect Employee Trust in the company such as Superior Behavior, Work Environment, and other things that can make Employees trust the company. In addition, the Work Engagement variable also cannot moderate the influence of the Trust in Superiors variable on the Employee Trust in the Company variable because the P-Values value is above the significance level of 0.05, namely 0.051. Thus, the first and second hypotheses in the study cannot be proven and accepted.
Hybridization of PSO-SSA for Photovoltaic System MPPT Under Dynamic Irradiance and Temperature Muhammad Iqbal; Hadi Suyono; Wijono
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 11, No. 1, February 2026
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v11i1.2410

Abstract

Maximum Power Point Tracking (MPPT) has become an important area of research to optimize the power generated by photovoltaic (PV) systems, particularly under various configurations such as series and parallel. Conventional methods, including Perturb and Observe (P&O) and Incremental Conductance (InC), often fail under dynamic or partial shading conditions, while metaheuristic algorithms such as Particle Swarm Optimization (PSO) and Salp Swarm Algorithm (SSA) provide global optimization but still suffer from slow convergence and power oscillations. This study proposes a hybrid MPPT approach by combining PSO and SSA to overcome these limitations. The algorithm was implemented in MATLAB/Simulink and tested under 96 scenarios covering series and parallel configurations with irradiance and temperature variations that change both suddenly (< 1 s) and gradually (> 1 s). Simulation results demonstrate that the hybrid PSO–SSA consistently achieves faster convergence compared to standalone PSO or SSA, with an average convergence time of 0.286 s in the series configuration (25–36% faster) and 0.282–0.284 s in parallel configuration, while achieving comparable power output to PSO. Overall, the proposed hybrid PSO–SSA algorithm provides a faster, more adaptive, and robust MPPT strategy under realistic PV operating conditions, contributing to reducing energy losses in fluctuating environments.
Co-Authors Abd. Rasyid Syamsuri Abraham Latumahina Achmad Rizanul Wahyudi Adabiah, Suhadah Rabi'atul Adi Mulyadi Adjie, Andreas Bimo Putro Agung Fitrahadi Ahmad Fahrudi Setiawan Ahmad Yusuf Rizki Akhmad Zaini Akhmad Zaini, Akhmad Aldi Lutfil Hikam Aldian Ferdiansyah Mahendra Aldias Rizaldi Alsabah, Mus Ali Amaral, Hanifiyah Darna Fidya Andang Widiharto Andri Suyoko Andrie Batista Azizul Hakim Angga Dwi Saputra Anggraeni, Karina Anik Tri Wahyuningtyas Annisa Rifqiana Annisa Rifqiana Annisa Rifqiana Anshori, Mochammad Isa Ansyaruddin Rahmatdiansyah Ardhito Primatama Ardiansyah, Rendy Ari Permana L. Ariefianto, Rizki Mendung Arnold J. Kastanja Arthanto, Dwi Handoko Asri Ady Bakri Bakti Setiawan Bambang Siswojo Bambang Siswoyo Basuki Winarno Basuki Winarno, Basuki Bernadus Blasio Arsoni Bob Alvin Sidabutar Bob Alvin Sidabutar Corina Martineac D Purnomo D. J. Djoko H. S. D.J. Djoko H.S. D.J. Djoko H.S., D.J. Djoko Darsono Darsono Dary Rafi Brafianto Dary Rafi Brafianto David Suban Koten Denny Widhiyanuriyawan Destha T Raharjana Dheo Kristianto Dhofir, Mochammad Dicki Bagus Chandra Dio Alif Airlangga Daulay Donny Ardi Kusuma Dony Darmawan Putra Dony Darmawan Putra Duta Narendratama Dwi Rina Utami Dwiatmaja, Agus Effendi Dodi Arisandi Eka Citra Agustini Eka Maulana Eka Maulana Eko S, Arief Trisno Elin Nuraini Erni Yudaningtiyas Farizha Irmawati, Farizha Fitri Novilia Frengki Eka Putra Surusa Galih Setiaji Hadi Suyono Hadi Suyono Hakim, Yusril Amir Abdullah Halomoan Marthin Muskita Harry Soekotjo Harry Soekotjo Dachlan Harry Soekotjo Dachlan Harry Soekotjo Dachlan HARRY SOEKOTJO DACHLAN Hary Septianwari Hasan Hasan Heddy S Ahimsa-Putra Hemi Septiady Hendrie A Kusworo Hendrik Kenedy Tupan Hermawan Arief Putranto Hery Purnomo Hikam, Aldi Lutfil Ibnu Kurnia Cahya Ihsan Ahmad Badrianto Irawan, Novta Danyel Irmantara Subagio Jemadi Jemadi Jemadi Junaidi Noh Khaeruddin Khaeruddin Khairil Anwar Kumala Mahda Habsari Kunjung Ashadi Kusuma, Dony Ardy Lily M. Sikome Lunde Ardhenta Lutfir Rahman Aliffianto M. Aziz Muslim M. Aziz Muslim M. Julius M. Julius St Mardotillah, Nanda Azizah Maulani Candra MG Adiyanti Moch. Dofir Mochamad Purnomo Mochammad Rusli Mohammad Taufan Asri Zaen Muchammad Andaru Ardana Muh. Ardiansyah A. P. Muhamad Luthfi Muhammad Aziz Muslim Muhammad Aziz Muslim Muhammad Daffa Hibatullah Muhammad Fauzan Muhammad iqbal Muhammad Kharis Fajar n/a Soeprapto Nola Ribath Nola Ribath Nugraha, Anggara Cahya Nur Faliza Nurkholis Hamidi Nurkholis Nurkholis Nurwati, Tri Onny Setyawati Pieter S. Tatipikalawan Pikaloka, Teguh Vio Ponco Siwindarto Pramudita Pamungkas Purwanto, Agus Tri Putra, Hari Widagdo Putra, Reza Hadi Editya Putranto, Hermawan Arief Rachmawati, Isti Dian Rakha Ghilman Fakhruddin Yusuf Ramadhani Kurniawan Subroto Ranap Sitorus Rendy Ardiansyah Ridlwan, Asfarur Rieneke Ryke Kalalo Rif'an, Mochammad Rina Tri Turani Saptawati Rini Nur Hasanah Rini Nur Hasanah Rizki Mendung Ariefianto Rizki Mendung Ariefianto Rizky Muhammad Sidik Rusdiawan, Afif Rusli, Mochammad Saefurrochman Saefurrochman Saipul, Saipul Sartika Wiguna, Anggri Sativa Sativa Sidiq, Rizky Muhammad Siregar, Dody Yunus Putra Siswojo, Bambang Sri Ekanti Sabardini Sukaryono Sukaryono Sunaryo Sunaryo Suryo Adi Wibowo Suryo, Arief Trisno Eko Suyono, Hadi Syaiful Rachman Syamsu Dhuha Taufik Teguh Lesmana Tri Nurwati Tri Nurwati Tri Setyo Utami Tria Lady Sijabat Tutur Jatmiko Unggul Wibawa Vinsensius Anggara Paramayuda Walenta, Abdi Sakti Waristra Tyo Nirwansyah Waru Djuriatno Waru Djuriatno Waru Djuriatno Waru Djuriatno Waru Djuriatno Waru Djuriatno. Widhohardhono, Rachman WIWIEN ANDRIYANTI Yogiswara Yogiswara Yukovany Zhulkarnaen Yurista Hardika Dinata Yusril Amir Abdullah Hakim Yusril Amir Abdullah Hakim, Yusuf Maulana Ramadhan Zainul Abidin Zainul Abidin Zuhal Azmiy Dwi Rachman