Article Per Year (5 Year)
p-Index From 2021 - 2026
6.724
P-Index
This Author published in this journals
All Journal International Journal of Electrical and Computer Engineering TEKNIK INFORMATIKA Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Rekayasa Mesin Telematika : Jurnal Informatika dan Teknologi Informasi Jurnal Teknologi Informasi dan Ilmu Komputer InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan JOIN (Jurnal Online Informatika) JURNAL MEDIA INFORMATIKA BUDIDARMA JURNAL ILMIAH INFORMATIKA Abdimas Dewantara JMM (Jurnal Masyarakat Mandiri) ILKOM Jurnal Ilmiah Jurnal Surya Masyarakat IJID (International Journal on Informatics for Development) IJISTECH (International Journal Of Information System & Technology) JUMANJI (Jurnal Masyarakat Informatika Unjani) Edsence: Jurnal Pendidikan Multimedia JURNAL CRANKSHAFT JUTIS : Jurnal Teknik Informatika JISKa (Jurnal Informatika Sunan Kalijaga) Infotekmesin Jurnal Bakti Saintek: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Dinasti International Journal of Education Management and Social Science Cyber Security dan Forensik Digital (CSFD) Jurnal Abdi Insani Jurnal Surya Masyarakat Jurnal Teknik Informatika (JUTIF) IJISTECH Nusantara: Jurnal Pendidikan Indonesia Jumat Informatika: Jurnal Pengabdian Masyarakat Jurnal Media Informatika Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi) Prosiding Seminar Hasil Penelitian dan Pengabdian Kepada Masyarakat Teknomatika: Jurnal Informatika dan Komputer
Bambang Sugiantoro
Universitas Islam Negeri Sunan Kalijaga
Religion Agriculture, Biological Sciences & Forestry Arts Humanities 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 Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences Transportation Other

Published : 82 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 82 Documents
Search

 5   6   7   8   9 
Metode Deteksi Tepi Block JPEG Terkompresi untuk Analisis Manipulasi Splicing pada Citra Digital Efendi, Muhamad Masjun; Sugiantoro, Bambang; Prayudi, Yudi
Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi) Vol. 2 No. 1 (2018): PROSIDING SEMNAS INOTEK Ke-II Tahun 2018
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/inotek.v2i1.449

Abstract

Citra digital semakin mudah untuk dimanipulasi dan diedit. Sering kali sebelum citra tersebut dipublikasi dilakukan proses manipulasi. Salah satu bentuk manipulasi citra adalah splicing. Manipulasi ini dilakukan dengan menduplikasi bagian tertentu dari satu citra atau lebih dan meletakkannya pada bagian tertentu di citra target (copy-move pada citra yang berbeda). Tujuan dari manipulasi splicing ini adalah untuk menambah objek dalam citra, contohnya meletakkan suatu objek pada citra target yang seolah-olah objek tersebut berada disana. Pada penelitian ini manipulasi citra jenis ini dideteksi menggunakan metode deteksi tepi block JPEG terkompresi. Metode ini mampu mendeteksi objek citra yang dimanipulasi dengan baik dan akurat.
TRANSFORMASI AGRIBISNIS BERKELANJUTAN: PEMBERDAYAAN PETANI DURIAN DAN KOPI DI DESA BRONGKOL, KABUPATEN SEMARANG Pujiati, Amin; Sugiantoro, Bambang; Budiman, Kholiq; Retnoningsih, Amin
Jurnal Abdi Insani Vol 12 No 11 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i11.3187

Abstract

The purpose of the community service program under the Regional Empowerment scheme is to strengthen sustainable agribusiness for durian and coffee commodities through cultivation technology in Brongkol Village, Jambu District, Semarang Regency. The focus of the community service program is to address regional problems, namely economic problems. The problem-solving method is carried out in a participatory manner through socialization activities, training, technology application, mentoring, monitoring, and evaluation, as well as program sustainability in the Brongkol Village area. There are two target partners who receive benefits, namely Ajuning Tani (durian commodity) and Karya Bakti I Farmers Group (Robusta coffee commodity). The focus of the community service program for Ajuning Tani partners is addressing economic problems while Karya Bakti I Farmers Group partners are addressing tourism problems. The economic problem faced by partners is the lack of derivative products that can provide added value and increase income. The tourism problem faced by partners is the lack of readiness of superior products to become a pioneering tourism village. The solution designed to address the problem is carried out through several trainings, training in processing durian derivative products in the form of durian gelato, durian ice cream, durian candy and frozen durian. Coffee derivative products include dried coffee beans, ground coffee packaging, coffee perfume, and key chains made from coffee waste. Business management training, including digital business records and a coffee drying house, and marketing outside the region are expected to improve the quality and quantity of durian and coffee for target partners, positively impacting the environment and strengthening the economy of the Brongkol Village community, transforming it into an agrotourism village.
ANALISIS KOMPOSISI UNSUR PRODUK PIROLISIS BIOMASSA UNTUK APLIKASI CO-FIRING PLTU Sutarno, Sutarno; Mastur, Mastur; Hartono, Hartono; Warso, Warso; Sugiarto, Tris; Sugiantoro, Bambang
JURNAL CRANKSHAFT Vol. 8 No. 4 (2025): Jurnal Crankshaft Vol. 8 No. 4 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i4.15826

Abstract

Penelitian ini membahas penerapan pendekatan pirolisis terintegrasi untuk mengonversi biomassa dan sampah terpilah menjadi bahan bakar padat ramah lingkungan yang dapat dimanfaatkan dalam program co-firing PLTU. Bahan baku yang digunakan meliputi kayu limbah, cangkang kelapa, dan bubur sampah terpilah yang diproses pada variasi suhu dan waktu pirolisis. Hasil penelitian menunjukkan bahwa jenis bahan baku berpengaruh signifikan terhadap karakteristik arang yang dihasilkan. Kayu limbah cenderung menghasilkan arang dengan kualitas stabil dan kadar air rendah, sedangkan cangkang kelapa menunjukkan performa terbaik dengan nilai kalor tinggi dan kadar abu lebih rendah. Sebaliknya, bubur sampah terpilah masih memiliki tantangan pada kandungan air dan nilai kalor, meskipun tetap berpotensi sebagai bahan baku energi alternatif. Analisis morfologi dan komposisi unsur mengonfirmasi bahwa kandungan karbon lebih dominan pada biomassa dibandingkan bursam, yang kaya mineral anorganik. Secara umum, tren hasil menunjukkan bahwa biomassa murni lebih unggul untuk produksi energi dengan kualitas tinggi, sementara bursam dapat difungsikan sebagai bahan substitusi tambahan. Temuan ini menegaskan peran pirolisis terintegrasi sebagai pendekatan berkelanjutan untuk mendukung diversifikasi energi dan pengelolaan sampah di Indonesia.Kata kunci: Pirolisis; biomassa; sampah terpilah; Kayu; cangkang kelapa; co-firing
PENERAPAN TEKNOLOGI PIROLISIS PLASTIK DAN ORGANIK MELALUI REAKTOR GANDA UNTUK OPTIMALISASI PENGELOLAAN SAMPAH BERKELANJUTAN Sugiantoro, Bambang; Martuti, Nana Kariada Tri; Sutisna, Utis; Widowati, Widowati; Sunyoto, Sunyoto; Soleh, Muhamad
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 1 (2025): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i1.27833

Abstract

Abstrak: Desa Kemangkon di Purbalingga merupakan wilayah dengan tingkat kemiskinan tinggi dan rawan banjir yang berdampak pada produktivitas pertanian. Banjir menyebabkan degradasi unsur hara dan penurunan kualitas tanah sehingga memengaruhi ketahanan pangan. Untuk mengatasi permasalahan ini, diterapkan teknologi pirolisis plastik dan biomassa yang bertujuan meningkatkan keberlanjutan ekonomi, pengelolaan lingkungan, dan pemberdayaan masyarakat. Permasalahan utama meliputi keterbatasan pengetahuan sumber daya manusia, teknologi pengolahan limbah yang masih sederhana, serta kurangnya strategi pengelolaan produksi berkelanjutan. Metode yang diterapkan mencakup pelatihan, penyuluhan, dan pendampingan sistem operasi reaktor pirolisis ganda untuk mengolah plastik menjadi minyak serta pembuatan biochar dari limbah organik guna memperbaiki struktur tanah. Evaluasi dilakukan melalui uji coba, validasi hasil, dan angket pretest serta post-test. Hasilnya menunjukkan peningkatan kapasitas mitra dalam pengelolaan limbah dan produksi biochar. Volume sampah plastik berkurang hingga 30%, sementara kualitas lahan pertanian meningkat. Gas metana juga dimanfaatkan untuk mengurangi penggunaan bahan bakar. Keberhasilan ini membuktikan bahwa teknologi berbasis masyarakat mampu menjadi solusi pengelolaan limbah yang efektif, mendukung pengurangan emisi karbon, dan mendorong pengelolaan limbah berkelanjutan.Abstract: Kemangkon Village in Purbalingga is a high-poverty area prone to flooding that affects agricultural productivity. Flooding causes soil nutrient degradation and reduced soil quality, which impacts food security. To address these issues, plastic and biomass pyrolysis technology was introduced to enhance economic sustainability, environmental management, and community empowerment. Key challenges included limited knowledge among human resources, basic waste processing technology, and the absence of sustainable production strategies. Methods implemented included training, counseling, and mentoring on operating dual-reactor pyrolysis technology to process plastic waste into oil and producing biochar from organic waste to improve soil structure. Evaluations were conducted through trials, result validation, and pre- and post-test surveys. The results showed increased partner capacity in waste management and biochar production. Plastic waste volume was reduced by 30%, while agricultural land quality improved. Methane gas was utilized to reduce fuel consumption. This success highlights the potential of community-based technology as an effective solution for waste management, supporting carbon emission reduction and promoting sustainable practices.
PENERAPAN METODE COMPOSITE LOGIC UNTUK PERANCANGAN FRAMEWORK PENGUMPULAN BUKTI DIGITAL PADA MEDIA SOSIAL Al Jumah, Muhammad Naim; Sugiantoro, Bambang; Prayudi, Yudi
ILKOM Jurnal Ilmiah Vol 11, No 2 (2019)
Publisher : Prodi Teknik Informatika FIK Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v11i2.442.135-142

Abstract

Social media has become a major part of society. But most of the time social media is used as a way people commit the crime. Due to numerous crimes that use social media, it is essential to design a framework to gather digital evidence on social media. This study develops the design of Framework by implementing Composite Logic Model.  A logic Composite model can be used to determine the role model of any variable or pattern that need to collaborate. Composite Logic Model will produce a role model that has a role to produce patterns so that it can produce the same goal. A method of Composite Logic will collaborate with the Digital Forensics Investigation framework to produce a Digital Evidence Collection Framework on Social Media. Based on data and facts, this study has been producing a new framework of gathering digital evidence on social media. The framework has four main stages in the process of collecting digital evidence on social media including pre-process, collection, analysis, and report.
IMPLEMENTASI TEKNOLOGI PIROLISIS SISTEM TERTUTUP UNTUK PENGOLAHAN SAMPAH RAMAH LINGKUNGAN BERBASIS PRODUKSI BIOCHAR Soleh, Muhamad; Sugiantoro, Bambang; Sutisna, Utis; Sartohadi, Junun; Ngadisih, Ngadisih; Pulungan, Ainun N.
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i2.37815

Abstract

Abstrak: Kabupaten Purbalingga menghadapi tantangan pengelolaan sampah dan ketahanan pangan akibat keterbatasan kapasitas TPS3R (1,2 ton/hari) dibandingkan timbulan sampah desa (1,86–2,2 ton/hari), rendahnya pemilahan dari sumber, serta rendahnya produktivitas pertanian karena keterbatasan teknologi. Program pengabdian kepada masyarakat ini bertujuan mengimplementasikan teknologi pirolisis sistem tertutup (close-loop system) berbasis Teknologi Tepat Guna (TTG) untuk meningkatkan pengolahan sampah, mendukung ekonomi sirkular, dan memperkuat ketahanan pangan desa. Program melibatkan dua mitra utama, yaitu Kelompok Swadaya Masyarakat (KSM) Berlian (17 anggota) sebagai pengelola sampah dan Kelompok Tani “Sanggar Tani” (24 anggota) sebagai pengembang pertanian. Pendekatan partisipatif diterapkan sejak perencanaan, instalasi, hingga operasional teknologi. Teknologi yang diterapkan meliputi mesin pemilah sampah tipe helix dan conveyor, reaktor pirolisis biomassa dan plastik, smoke scrubbing system, serta greenhouse hortikultura bertenaga surya. Hasil menunjukkan lebih dari 80% anggota mampu mengoperasikan teknologi secara mandiri. Kapasitas pengolahan meningkat menjadi 1,75 ton/hari, produktivitas hortikultura naik 50–70%, efisiensi energi mencapai 60%, serta biochar berpotensi meningkatkan pendapatan kelompok 30–40%. Program ini efektif memperkuat pengelolaan sampah, produktivitas pertanian, dan ketahanan pangan berkelanjutan. Abstract: Purbalingga Regency faces challenges in waste management and food security due to the limited capacity of TPS3R (1.2 tons/day) compared to the amount of waste generated by villages (1.86–2.2 tons/day), low sorting from the source, and low agricultural productivity due to limited technology. This community service program aims to implement closed-loop pyrolysis technology based on Appropriate Technology (TTG) to improve waste management, support the circular economy, and strengthen village food security. The program involves two main partners, namely the Berlian Community Self-Help Group (KSM) (17 members) as waste managers and the “Sanggar Tani” Farmer Group (24 members) as agricultural developers. A participatory approach was applied from the planning and installation stages to the operation of the technology. The technologies applied include a helix-type waste sorting machine and conveyor, a biomass and plastic pyrolysis reactor, a smoke scrubbing system, and a solar-powered horticultural greenhouse. The results show that more than 80% of members are able to operate the technology independently. Processing capacity increased to 1.75 tons/day, horticultural productivity rose by 50–70%, energy efficiency reached 60%, and biochar has the potential to increase the group's income by 30–40%. This program effectively strengthens waste management, agricultural productivity, and sustainable food security.
Comparison of Deep Learning Architectures for Facial Recognition Muhammad Khoirul Anwar; Bambang Sugiantoro
Dinasti International Journal of Education Management and Social Science Vol. 7 No. 3 (2025): Dinasti International Journal of Education Management and Social Science (Febru
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v7i3.6080

Abstract

Facial recognition technology in modern security systems, including access control, identity verification, and digital devices. This study aims to compare the performance of three widely used deep learning architectures, Convolutional Neural Network (CNN), VGG16, and FaceNet512, in processing and identifying facial features. A quantitative approach was employed through computational experiments using facial image datasets. The performance of each model was evaluated using accuracy, precision, recall, and F1 score to assess its effectiveness in facial recognition tasks. The study revealed significant differences in the performance of each architecture, both in terms of recognition accuracy and processing efficiency. CNN, VGG16, and FaceNet512 each demonstrated distinct strengths and limitations. These findings provide valuable insights for selecting the most suitable deep learning architecture for practical and academic applications in facial biometric security systems.
Data Search Process Optimization using Brute Force and Genetic Algorithm Hybrid Method Yudha Riwanto; Muhammad Taufiq Nuruzzaman; Shofwatul Uyun; Bambang Sugiantoro
IJID (International Journal on Informatics for Development) Vol. 11 No. 2 (2022): IJID December
Publisher : Faculty of Science and Technology, Universitas Islam Negeri (UIN) Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/ijid.2022.3743

Abstract

High accuracy and speed in data search, which are aims at finding the best solution to a problem, are essential. This study examines the brute force method, genetic algorithm, and two proposed algorithms which are the development of the brute force algorithm and genetic algorithm, namely Multiple Crossover Genetic, and Genetics with increments values. Brute force is a method with a direct approach to solving a problem based on the formulation of the problem and the definition of the concepts involved. A genetic algorithm is a search algorithm that uses genetic evolution that occurs in living things as its basis. This research selected the case of determining the pin series by looking for a match between the target and the search result. To test the suitability of the method, 100-time tests were conducted for each algorithm. The results of this study indicated that brute force has the highest average generation rate of 737146.3469 and an average time of 1960.4296, and the latter algorithm gets the best score with an average generation rate of 36.78 and an average time of 0.0642.
Implementasi Pembelajaran Internet of Things (IoT) Berbasis Project-Based Learning pada Siswa Kelas 12 MA Nurul Ummah Yogyakarta Hanif Amarudin; Naufal Hafizh Mufafaq; Bambang Sugiantoro
Jumat Informatika: Jurnal Pengabdian Masyarakat Vol. 7 No. 1 (2026): April
Publisher : LPPM Universitas KH. A. Wahab Hasbullah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32764/abdimasif.v7i1.6796

Abstract

The digital divide and limited infrastructure at the secondary education level often hinder the mastery of Internet of Things (IoT) technology, which is crucial for students' career readiness. This community service program aims to improve 12th-grade students' understanding of basic IoT concepts and technical skills at MA Nurul Ummah Yogyakarta, to facilitate their transition to college or work. The implementation method applied a Project-Based Learning (PjBL) approach assisted by the Tinkercad simulator, involving 71 students in 36 working groups. Participants were given theoretical training followed by a practical, simple project design, including traffic lights, light sensors, temperature sensors, and running text. The results of the activity showed a project completion success rate of 70.59%, with the temperature sensor project achieving the highest success rate (100%). Cognitively, the post-test evaluation showed a significant increase, with 69.23% of students achieving a “Very Good” rating (score of 100), despite the majority having limited prior knowledge. It was concluded that simulation-based IoT education proved to be effective and efficient in improving students' digital literacy and problem-solving skills, although challenges in programming logic still require further study.
Bandwidth Prediction in Zoom Meetings: A Mathematical Model Based on Feature Configuration Analysis Cahyono, Andi; Nuruzzaman, Muhammad Taufiq; Sugiantoro, Bambang; Sumarsono, Sumarsono
Jurnal Teknik Informatika (Jutif) Vol. 7 No. 3 (2026): JUTIF Volume 7, Number 3, June 2026
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2026.7.3.4138

Abstract

Video conferencing applications such as Zoom Meeting require sufficient and stable bandwidth to maintain communication quality. However, bandwidth needs often vary depending on user configurations, including video resolution, audio bitrate, and content-sharing activity. This study aims to develop a mathematical formula capable of accurately estimating bandwidth requirements for Zoom Meeting sessions. The methodology combines quantitative experiments and numerical simulations by collecting throughput data using Wireshark, analysing feature-based parameter variations, and validating the proposed formula through MATLAB simulation. Data were obtained from multiple Zoom sessions executed under controlled conditions with different feature combinations and replicated twenty times to ensure accuracy. The validation results show that the formula consistently provides realistic and stable estimations when compared with actual throughput measurements and simulation outcomes. The proposed model offers a simple yet effective tool for predicting bandwidth requirements, supporting efficient network capacity planning, and enhancing the overall performance of video conferencing environments.
Co-Authors Abdul Haris Muhammad Abdullah, Mohd. Fikri Azli bin Afrianto, Nurdi Agung Fatwanto Ahmad Luthfie Akbar, Bintang Faisal Akbar, Muhammad Tulus Al Jum'ah, Muhammad Na'im Alfarizi, Naufal Faiz Alifah Amalia Amalia, Alifah Amanulloh, Rivkih Amin Pujiati Amin Retnoningsih Anbari, Muhamad Zaki Andi Cahyono Arromdoni, Bad’ul Hilmi Astari, M Rizky bahary, muhammad syaiful Bahry, Muhammad Syaeful Budi Permana Putra Budiman, Kholiq Dewantara, Rizki Dori Gusti Alex Candra Efdika, Muhamad Fadil Efendi, Muhamad Masjun Elvanisa Ayu Muhsina, Elvanisa Ayu Endra Yuliawan Fahmi Romisa Gatra, Rahmadhan Gunawan Gunawan Habibah, Berlian Ummu Habibullah, Ricky Hafizuddin, Faiz Akhmad Hakim, Fani Rakhman Hanif Amarudin Hanif Hanif Hartono Hartono Helmi Rachman Idir Fitriyanto Idir Ika Arfiani Imtikhan Azmi, Himawan Istianto, Yudi Izdiharsant, Almaas Jazi Eko Istiyanto Junun Sartohadi Karmesti, Danissa Wirna Kesumahadi, Lisdianto Dwi Khanif Setiyawan Khusna, Tachiyya Nailal Mahardhika, Yuha Bani Mahbub Puba Fawzan Mahbub Puba Fawzan, Mahbub Puba Mahmuda, Muhimmatul Mardlian, M. Sa’id Abdurrohman Kunta Maria Ulfa Siregar Maria Ulfah Siregar Maria Ulfah Siregar Mastur Meiditra, Irzon Merisa Kurniasari Fadilla Muhamad Fadli Muhamad Soleh Muhamad Zaki Anbari Muhammad Hambali, Muhammad Muhammad Khoirul Anwar Muhammad Naim Al Jumah Muhammad Reza Velayani Muhammad Taufiq Nuruzzaman Mujahidah, Latifatul Mulyana, Riyan Nana Kariada Trimartuti Nana Supriyana Naufal Hafizh Mufafaq Ngadisih Ngadisih Ngisomudin, Ngisomudin Nora Lizarti Nugrah Rekto Prabowo Nuruzzaman, Muhammad Taufiq Panggih Gumelaring Praja Pomalingo, Suwito Pratiwi, Millati Pulungan, Ainun N. Qorry Aina Fitroh Rachman, Helmi Retantyo Wardoyo Rini Audia Rinny Asasunnaja Riwanto, Yudha Romisa, Fahmi Rusnaldhy, Rusnaldhy Sakuri, Sakuri Sakuri, Sakuri Setyaningsih, Putry Wahyu Shofwatul 'Uyun Shofwatul ‘Uyun Son’Aniy, Irham Sophan Sofian Sri Hartati Subki, Ahmad Sucinta, Hanny Handayani Sumarsono , Sumarsono Sumarsono Sumarsono Sunyoto Sunyoto Supiyana, Nana Supriyono, Abdul Rohman Susilo Adi Widyanto Sutarno Sutarno Tasya Kumala Dewi, Bella Tri Widodo Tris Sugiarto Utis Sutisna Warso Warso, Warso Wibowo, Trio Nur Wicaksono, Nur Kukuh widowati widowati Wildan Nadiyal Ahsan Winasis, Bima Putra Yudha Riwanto Yudi prayudi Yuha Bani Mahardhika