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Evaluasi Pengaruh Media Pembelajaran Terhadap Hasil Belajar Otomotif Melalui Pendekatan Meta-Analisis Yulianto, Muhammad Dwi; Iskandar, Ranu; Naryanto, Rizqi Fitri
Jurnal Pendidikan dan Teknologi Indonesia Vol 5 No 1 (2025): JPTI - Januari 2025
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpti.588

Abstract

Kurangnya evaluasi komprehensif pengaruh media pembelajaran terhadap hasil belajar siswa SMK otomotif memotivasi penelitian ini. Tujuan dari penelitian ini untuk menelusuri tentang sejauh mana pengaruh media pembelajaran terhadap hasil belajar siswa SMK otomotif dan mendeteksi tingkat variasi antar studi dapat dianalisis dengan meta analisis.  Data dikumpulkan dari Google Scholar yang dicari bulan Oktober hingga November 2024 dengan memasukkan kata kunci yang telah ditentukan. Setelah itu dilakukan proses tahapan PRISMA (Preffered Reporing Item for Systematic Review and Meta Analysis). Sesuai kriteria inklusi, 31 manuskrip yang memenuhi kelayakan untuk dianalisis. Alat bantu analisis data tersebut dilakukan dengan menggunakan software JASP versi 0.19.0.0. Hasil penelitian ditemukan effect size menggunakan model Random Effect secara keseluruhan dari penerapan media pembelajaran terhadap hasil belajar siswa adalah 0.971. Temuan ini mengindikasikan bahwa penerapan media pembelajaran terdapat pengaruh signifikan terhadap hasil belajar siswa. Analisis terhadap tiga variabel moderator digunakan untuk mempertimbangkan tingkat variasi studi. Variabel Jenis media pembelajaran Macromedia Flash [1,267, 95%CI (0.415, 2.118)], Animasi [1,144, 95%CI (0.144, 2.144)] dan Video [0,714, 95%CI (0.244, 1.185)] menunjukkan pengaruh signifikan. Variabel wilayah Sumatera [1.928, 95%CI (0.455, 3.401)], Sulawesi [1.053, 95%CI (0.202, 1.905)], dan Jawa [0.885, 95%CI (0.333, 1.436)] menunjukkan pengaruh signifikan, sedangkan Bali [0.649, 95%CI (-0.258, 1.555)] dan Kalimantan [0.149, 95%CI (-0.291, 0.589)] tidak signifikan. Variabel publikasi jurnal [0.961, 95%CI (0.512, 1.409)] dan repositori skripsi [1.043, 95%CI (0.070, 2.016)] menunjukkan pengaruh signifikan. Macromedia flash merupakan media pembelajaran paling mempegaruhi hasil belajar siswa SMK disusul oleh animasi dan video. Temuan ini menandakan bahwa media pembelajaran lebih efektif di terapkan di Sumatera, Sulawesi, dan Jawa dengan penelitian yang bersumber dari jurnal maupun skripsi memiliki pengaruh signifikan. Penelitian ini penting untuk memperkuat pengambilan keputusan berbasis data dalam penerapan media pembelajaran yang efektif dalam meningkatkan hasil belajar siswa otomotif.
Pelatihan Penggunaan Media Pembelajaran Tentang Budaya Keris Berbasis Virtual Reality di Sekolah Dasar Rizqi Fitri Naryanto; Mera Kartika Delimayanti; Ranu Iskandar; Didik Supriadi; Imam Sukoco; Aldias Bahatmaka; Warsiti Warsiti
TAAWUN Vol. 3 No. 02 (2023): TA'AWUN AUGUST 2023
Publisher : Pusat Penelitian Pengabdian Pada Masyarakat Sekolah Tinggi Ilmu Tarbiyah Al-Fattah Siman Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37850/taawun.v3i02.511

Abstract

The utilization of Virtual Reality (VR) technology for educational purposes, namely in instructing Indonesian culture, particularly the Keris culture, holds significant importance. This is due mainly to the limited dissemination of knowledge on Keris and traditional weaponry inside educational institutions, as they are not currently incorporated into the curriculum. The Universitas Negeri Semarang and Politeknik Negeri Jakarta teams have developed interactive learning media focusing on virtual reality (VR) technology. The primary objective of the virtual reality (VR) application is to provide a comprehensive exploration of Keris culture, intending to foster a deeper understanding and appreciation of Indonesia's rich cultural legacy among the younger generation, mainly elementary school pupils. The approach involves offering instructional sessions to students and educators, focusing on utilizing virtual reality (VR) technology as an educational instrument. Training activities were provided at Barusari 02 Elementary School in South Semarang. Considering technological accessibility is crucial to ensuring that all students can access educational materials without obstacles. The findings derived from administering pre- and post-assessments to primary school children indicate that Virtual Reality Technology has the potential to engender greater interest among pupils in acquainting themselves with Indonesian culture. Most participants, above 80%, expressed a strong positive inclination towards utilizing Virtual Reality (VR) Technology to acquire knowledge about various cultural aspects. By providing appropriate support and adopting a comprehensive approach, virtual reality (VR) has the potential to serve as an efficacious instrument for enhancing students' comprehension and admiration of Indonesian culture.
Development Of Character-Based Learning Methods In Computer Aided Design (CAD) Courses Ari Dwi Nur Indriawan Musyono; Murdani; Samsudi; M. Khumaedi; Sudiyono; Wahyudi; Sonika Maulana; Rizqi Fitri Naryanto
Jurnal Pendidikan Teknik Mesin Vol. 11 No. 1 (2024): Jurnal Pendidikan Teknik Mesin
Publisher : Program Studi Pendidikan Teknik Mesin Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwiajaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jptm.v11i1.24

Abstract

Competence as a mastery possessed by a person needs to be improved with the right method. This study aims to develop a character-based learning method in the Computer Aided Design (CAD) course, improve learning outcomes and determine the increase in competence. The method used is an experiment, with a classroom action research approach. The learning process is managed with group management based on character suitability. The sample is students who take the CAD course. The results of the study showed that the character learning management model received very good criteria. This criterion is based on statements from students and lecturers. The results of the learning process can be concluded that learning grouping can be used to improve the competence of student learning outcomes in sketch material. This can be seen from the first reflection test of 40 students, 9 (22%) met the competency standard, reflection II 31 (78%) students met the standard and reflection III only 1 student did not meet it, in addition there was an increase in learning outcomes from a score of 66 to 80.
Impact of digital literacy and interpersonal communication on prospective teacher readiness of automotive engineering education Utami, Nunik Widia; Iskandar, Ranu; Naryanto, Rizqi Fitri
Jurnal EDUCATIO: Jurnal Pendidikan Indonesia Vol. 10 No. 2 (2024): Jurnal EDUCATIO: Jurnal Pendidikan Indonesia
Publisher : Indonesian Institute for Counseling, Education and Therapy (IICET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/1202424795

Abstract

Digital literacy equips prospective teachers with essential information and communication technology (ICT) skills, while interpersonal communication enables them to interact effectively with students and the community. However, the impact of these skills on the readiness of prospective teachers, especially in the Automotive Engineering Education Study Program, has not been widely studied. This study attempts to examine how digital literacy influences students' readiness to become teachers in this study program. A quantitative approach was used in this study, the data collection process used the help of an online questionnaire with a population of 2019 and 2020 PTO students with a sample determined by the Slovin method of 62 students. The results showed an R2 value of 0.389, which means 38.9% of the variance in teacher readiness can be explained by digital literacy. In addition, a positive correlation (R = 0.623) is shown in the relationship between variables. Meanwhile, the coefficient B of digital literacy is 0.373. This indicates that as the digital literacy and interpersonal communication skills of PTO students of Semarang State University increase, their readiness to become teachers also increases. The conclusion from this study is that digital literacy and interpersonal communication have a significant effect on the readiness of prospective teachers of PTO students of Semarang State University.
Analyzing the Total Resistance and Wave Pattern of Purse Seine Vessels with Photovoltaic-Powered Naryanto, Rizqi Fitri; Bahatmaka, Aldias; Wibowo, Muhammad Yusuf; Ghyferi, Andi Abdullah; Fahmi, Fiqri Fadillah; Hyoung Cho, Joung
Rekayasa Vol. 22 No. 2 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v22i2.10634

Abstract

With 64.97% of its territory consisting of sea, Indonesia is one of the world's largest maritime nations and produces approximately 8.02 million tons of fish annually. Traditional fishing vessels play a crucial role in supporting livelihoods, yet their design is often based on hereditary methods rather than hydrodynamic optimization. This study uses catamaran hull forms as a design reference to analyze the total resistance and wave patterns of purse seine vessels with photovoltaic-powered systems. Computational methods are employed to predict vessel performance efficiently. The resistance analysis applies the Slender Body approach and Savitsky's mathematical model, supported by comparative studies for validation. Particular attention is given to the influence of chine configurations on resistance characteristics and wave formation. Results indicate that the addition of chines increases the Froude number and contributes to reducing total resistance. Among the variations, single chine geometry demonstrates the lowest resistance, making it the most efficient configuration for catamaran fishing vessels. While chine modifications affect the wave pattern, the hull maintains a relatively clean wake distribution. These findings highlight the potential for improving vessel design through careful chine geometry optimization combined with computational modeling. The study underscores the importance of modern hydrodynamic analysis in advancing traditional fishing vessels toward higher efficiency and sustainability. Future research is recommended to incorporate more advanced computational approaches, such as Computational Fluid Dynamics (CFD), examine water-hull interactions and enhance vessel performance under operational conditions.
Simulasi 3D dan Studi Eksperimental Aliran Udara pada Variasi Geometri Menggunakan Wind Tunnel Firmansyah, Hendrix Noviyanto; Wirardi, Profit; Naryanto, Rizqi Fitri; Karnowo, Karnowo
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.4973

Abstract

Aliran udara laminar memberikan dampak positif bagi benda yang bergerak diudara jika dibandingkan dengan aliran tubulansi. Secara teori, jenis aliran laminar dan turbulansi dapat diketahui dari nilai Reynold number, namun tidak bisa dilihat secara visual tanpa ada alat khusus yang menggunakan asap atau kabut. Wind smoke tunnel merupakan alat yang dapat digunakan untuk mensimulasikan dan memperlihatkan aliran udara serta benda yang bergerak didalam aliran udara. Pentingnya visualisasi aliran udara adalah untuk melihat efek dari berbagai bentuk benda terhadap sifat aerodinamis. Visualisasi aliran udara dapat memberikan gambaran aliran udara yang melewati benda atau obyek tanpa menggunakan perhitungan yang komplek. Benda yang digunakan dapat berupa benda asli atau benda dalam bentuk model yang diatur skala perbandingannya. Wind tunnel dibuat dengan panjang 2 m dengan dimensi seksi uji adalah 50 cm x 30 cm x 20 cmm. Dengan kondisi batas tersebut selanjutnya akan dihitung dimensi untuk construction dan diffuser wind tunnel. Selanjutnya adalah membuat smoke generator yang akan digunakan untuk memperlihatkan aliran udara disekitar benda uji. Smoke generator dibuat dengan mekanisme pembakaran fuel yang kemudian disambungkan pada pipa yang terpasang pada wind tunnel. Benda uji yang telah dibuat kemudian dipasang pada test section kemudian dijalankan fan pada wind tunnel sehingga menghisap udara untuk melewati benda uji dan akan memperlihatkan pola aliran disekitar benda uji.
The effect of additive addition to fuel with variations in preheating and water coolant on multi-cylinder diesel engine performance Faisal Abdul Aziz; Maulana, Sonika; Naryanto, Rizqi Fitri; Hidayat, Hanif
JMEL : Journal of Mechanical Engineering Learning Vol. 13 No. 2 (2024): December
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v13.i2.5076

Abstract

Diesel engines are essential for transporting heavy loads, requiring significant engine power. This study aims to evaluate the effect of adding PTT (diesel fuel conditioner) additives to Dexlite fuel, focusing on mixtures of D0, D1, and D2. Additionally, variations in fuel pre-heating and engine cooling system fluids are examined. This research employs an experimental approach with descriptive analysis. The findings indicate that the optimal torque occurs with the D2 mixture, achieving 136.57 N·m at 2267 rpm with standard coolant, 152.03 N·m at 2100 rpm with a 50%:50% fluid ratio, and 160.70 N·m at 2033 rpm with a 30%:70% fluid ratio, all without pre-heating. The optimal power values for the D2 mixture are 74.60 HP at 4600 rpm with standard fluid, 75.23 HP at 4100 rpm with a 50%:50% fluid ratio, and 78.03 HP at 4000 rpm with a 30%:70% fluid ratio, also without pre-heating. The average results show that the D1 and D2 mixtures improve torque values by 0.77% and 4.75%, respectively, and enhance power by 0.19% and 1.53% compared to pure Dexlite. In contrast, pre-heating at 50°C, 60°C, and 70°C resulted in a decrease in torque of 1.00%, 2.26%, and 3.62%, respectively, and a reduction in power of 0.56%, 2.29%, and 4.79% compared to normal temperature conditions.
Effect of using a high performance-low pollution muffler (hplpm) with catalytic converter on fuel consumtion and performance of 110cc Susanto, Nugroho Fajar; Roziqin, Ahmad; Naryanto, Rizqi Fitri; Mujaki, Ahmad
JMEL : Journal of Mechanical Engineering Learning Vol. 13 No. 1 (2024): June
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jmel.v13.i1.7934

Abstract

The increse in the number of motorcycles to fulfil mobility is domianted by matic type. Over time the vehicle will experience a derease in performance and appearance, triggering modification. the purpose of this study was to determine the difference in motorcycle performance with the use of standard exhaust, HPLPM 2 + catalytic converter and HPLPM mod + catalytic converter. This reaserch was conducted with a quantitative research meode with an experiemental approach, performance testing test data at engine speed of 3000-9000 rpm. Engine temperature 80 degree with pertamax fuel ocatane 92. In this study, HPLPM mod + catalytic converter produces 12,23 N.m of torque at 4500 rpm, the highest power produced by HPLPM 2 + catalytic converter 8,27 Hp at 5500 rpm. exhaust HPLPM mod + catalytic converter is able to maintain power at high rpm 7,70 Hp at 8250 rpm.
Media Pembelajaran Kendaraan Bermotor Berbasis Permainan Virtual Reality di SD Negeri Barusari 02 Semarang Selatan Naryanto, Rizqi Fitri; Delimayanti, Mera Kartika; Abdurrahman, Abdurrahman; Arifin, Muhammad Faizal Ardhiansyah; Sukoco, Imam; Fahmi, Fiqri Fadillah; Naryapramono, Afrilza Daffa; Kristiana, Indah Maya; Suratmi, Sifera
Jurnal Atma Inovasia Vol. 4 No. 4 (2024)
Publisher : Lembaga Penelitian dan Pengabdian pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jai.v4i4.9487

Abstract

Penggunaan teknologi Virtual Reality (VR) dalam pendidikan Sekolah Dasar (SD) menjadi solusi inovatif untuk mengatasi keterbatasan metode pembelajaran konvensional yang kurang interaktif. Pengabdian ini bertujuan untuk meningkatkan pemahaman siswa SD Negeri Barusari 02 di Semarang tentang kendaraan bermotor melalui penguatan media pembelajaran dengan teknologi VR. Kegiatan pengabdian masyarakat ini dilakukan dalam 5 tahap, yaitu Design Thinking, Komunikasi Tim Pengabdi dengan Mitra, Finalisasi Media Pembelajaran, Penerapan IPTEKS untuk Mitra, dan Evaluasi Hasil. Pengembangan media pembelajaran menggunakan metode SDLC Waterfall. Hasil kegiatan menunjukkan peningkatan rata-rata sebesar 72.5% dalam pemahaman mengenai Virtual Reality dan kendaraan bermotor. Sebesar 90% peserta merasa sangat senang belajar menggunakan permainan Virtual Reality, dan 95% menyatakan keinginan untuk menggunakannya kembali. Pengabdian ini menyimpulkan bahwa penerapan teknologi VR dalam pembelajaran dapat meningkatkan minat dan pemahaman siswa terhadap bidang permesinan kendaraan bermotor.
Application of Android-Based Interactive Multimedia to Enhance Learning Outcomes in Understanding the Working Principles of SMAW Welding Gustina, Hesti; Abdurrahman, Abdurrahman; Naryanto, Rizqi Fitri
Journal of Vocational and Career Education Vol. 9 No. 1 (2024): July 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v9i1.18597

Abstract

Traditional learning media remain prevalent due to the limited utilization of Android-based platforms among students as an instructional tool, necessitating an update in information delivery methods. The integration of technology in teaching materials aims to address this gap. This study seeks to implement Android-based interactive multimedia using the Problem Based Learning model to enhance students learning outcomes in understanding the working principles of Shielded Metal Arc Welding (SMAW) in cognitive, affective, and psychomotor domains. The research follows the ADDIE development model, which includes Analysis, Design, Development, Implementation, and Evaluation. The study involved 72 tenth grade students from the Welding and Metal Fabrication Engineering program, divided into control and experimental groups. The findings indicate that the application of Android-based interactive multimedia significantly increased students learning interest, with an initial average score of 63.194 rising to 73.889. T-test results revealed a significant difference between pre-test and post-test scores, with a significance value (2-tailed) of p = 0.00 < 0.05 and a t-value of 6.504. The hypothesis testing confirms that the use of Android-based interactive multimedia positively influences the learning outcomes of tenth grade students in the Welding and Metal Fabrication Engineering program at SMK Negeri 1 Adiwerna. Based on these findings, it can be concluded that the implementation of Android-based interactive multimedia effectively enhances students understanding of SMAW welding principles.
Co-Authors Aam Maulana Ikhsan Abdillah Habib Al Misbah Abdillah Habib Al’Misbah Abdurahman Abdurrahman Abdurrahman Abdurrahman Abdurrahman Adhi Kusumastuti Agung Budiwirawan Ahmad Athoillah Ahmad Roziqin Ahmad Roziqin, Ahmad Ajhi Bangun Priambudi Aldias Bahatmaka Alfarizy, Ibnu Alpahsyah, Framesta Eksya Alwidad, R. M. Rois Al’Misbah, Abdillah Habib Amirudin, Eka Amrulloh, Muhammad Iqbal Arif Ananda Bimo Satrio Andi Abdullah Ghyferi Andra Andika Putra Andri Setiyawan Angga Septiyanto Apip Amrullah Arafah, Iqbal Rasendriya Arga Farid Ahmadi Arga Fernando Ari Dwi Nur Indriawan Musyono Arya Putra Nugraha Aryadi, Adit A’ida, Dalila Najwallah Bakti Laksono Bayu Bagas Hapsoro Budiman, Febrian Arif Bunajar, Habib Burhanudin, Muh. Winarno Chusen Ismail Sidiq Devi Aisa Fitri Dharma, Mahardika Setya Dhuha, Wahyu Nur Dian Refiana Didik Supriadi Dzaky Riyavika Prasetyo Eko Saputro, Wahyu Danang Fadlu, Vio Fahmi, Fiqri Fadillah Faisal Abdul Aziz Faiz, M. Agung Nur Farda Pega Libra Gojandra Farras, Herdin Bergas Fauziyah, Nilna Faza, Muhammad Iqbal Fikrianza, Nabila Hasna Fiqih Abi Mahardika Fiqri Fadillah Fahmi Firmansyah, Muhammad Raihan Fitra Ridwan Riyanto Fitri, Devi Aisa Fitriyana, Deni Fajar Fuatzin, Ignas Ghulamzaki, Muhammad Ghyferi, Andi Abdullah Gustina, Hesti Hadromi Hadromi Hadromi Hafizh, Muh. Abiyyu Hamdi, Ilham Falah Hanif Hidayat Hanif Nurfa'iq Harahap, M. Abiyyu Hafizh Hendrix Noviyanto Firmansyah, Hendrix Noviyanto Hidayat, Hanif Hidayatulloh, Dimas Restu Hyoung Cho, Joung Ikhsan, Aam Maulana Imanu Danar Herunandi Imanu Danar Herunandi Indriawan, Ari Dwi Nur Iskandar, Ranu Ja'far Faris Nashiruddin Jamari Jamari Jeri Juliyono Karnowo - Kharis Burhani, Kharis Kristiana, Indah Maya Kriswanto Kriswanto Kriswanto Kriswanto Kriswanto Kriswanto Kriswanto Kriswanto, Kriswanto Kurniawan, Aldi Laksono, Bakti Luh Putu Ratna Sundari M. Agung Nur Faiz M. Aufa Nabil M. Khumaedi M. Sadewa Mikadilana Mahardika, Fiqih Abi Maharudin Wira Pratama Mahasurya, Muhammad Saddam Malik, Muhamad Bani Marcelio Aurel Ananta Sakti Masugino Maturidi, Rusman Maulana, Muhammad Akmal Mera Kartika Delimayanti Miftakhun Nuril Mikadilana, M. Sadewa Misbah, Abdillah Habib Al Mochammad Miftachul Syanusi Mohamad Naufal Aditya Mubarak, Raihan Fa'iq Muh. Abiyyu Hafizh Muh. Ridwan Prananda Muh. Rizki Ivan Setiawan Muh. Winarno Burhanudin Muhammad Faizal Ardhiansyah Arifin Muhammad Faizal Ardhiansyah Arifin, Muhammad Faizal Ardhiansyah Muhammad Najbanuhal Khakim Muhammad Saddam Mahasurya Muhammad Syafiulloh Muhammad Yusuf Wibowo Mujaki, Ahmad Murdani Murniati, Marika Nabil, M. Aufa Nadhiva Qothrunnada Naryapramono, Afrilza Daffa Nashiruddin, Ja'far Faris Natasya, Alya Widya Naufal, Muhammad Abdullah Nugroho Fajar Susanto Nugroho, Anan Nugroho, Cahyo Adin Nugroho, Muhammad Hafidz Akbar Nurfa'iq, Hanif Nuril, Miftakhun Nursiam, Kuat Oktova Yusuf Briantoro Pambudi, Rofex Panjaitan, Eliza Laura Prananda, Muh. Ridwan Prasetyo, Dzaky Riyavika Pratama, Maharudin Wira Pratama, Sholikhul Yudha Priambudi, Ajhi Bangun Priyanto, Kaleb Priyasigit, Tri Wahyu Putra, Andra Andika Qothrunnada, Nadhiva R. M. Rois Alwidad Rafif Dimas Pratama Ramadhani, Risky Ramelan Ramelan Refiana, Dian Risky Ramadhani Riwan Setiarso, Riwan Rizki Setiadi Rusiyanto Rusiyanto, Rusiyanto Rusman Maturidi Samsudi Samsudin Anis Saputra, Dhimas Andy Saputra, Muhammad Dwi Saputra, Muhammad Rizal Satria Bayu Segoro Segoro, Satria Bayu Selvia Septavian, Ihza Humam Setiadi, Rizki Setiawan, Muh. Rizki Ivan Setyadmaja, Daffa Ilham Setyo Bhahak Fendi Baihaqi Sholikhul Yudha Pratama Sidiq, Chusen Ismail Sonika Maulana Sonika Maulana Sudiyono Suhartian, Muhammad Ryo Sukoco, Imam Supriadi, Didik Suratmi, Sifera Susanto, Nugroho Fajar Syafiulloh, Muhammad Syahriar, Fadhila Fauzia Tri Wahyu Priyasigit Ulhakim, Muhammad Zia Utami, Nunik Widia Vio Fadlu Wahyu Hidayat Wahyu Nur Dhuha Wahyudi Wahyudi Wahyudi Warsiti Warsiti Warsiti Warsiti Wibowo, Muhammad Yusuf Wirardi, Profit Wirawan Sumbodo Yulianto, Muhammad Dwi Yusuf Subagyo