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All Journal PROSIDING SEMINAR NASIONAL LITE: Jurnal Bahasa, Sastra, dan Budaya Abdimas Jurnal Penelitian Pendidikan Language Circle : Journal of Language and Literature Jurnal Optimasi Sistem Industri English Review: Journal of English Education JEES (Journal of English Educators Society) R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Ilmiah Lingua Idea E-Structural Journal of Teaching and Learning English Issues Belajar Bahasa : Jurnal Ilmiah Program Studi Pendidikan Bahasa dan Sastra Indonesia English Language and Literature International Conference (ELLiC) Proceedings Jurnal Surya Masyarakat Jurnal Akuntansi Kompetif JALL (Journal of Applied Linguistics and Literacy) English Focus: Journal of English Language Education Getsempena English Education Journal Madaniya Jurnal Surya Masyarakat Journal of English Teaching and Learning Issues Community Empowerment Malikussaleh Journal of Mechanical Science Technology Proceedings Series on Social Sciences & Humanities Jurnal Teknik Mesin Mechanical Xplore SIGEH ELT : Journal of Literature and Linguistics Public Health and Safety International Journal (PHASIJ) Studies in English Language and Education Prosiding Seminar Nasional Pascasarjana Warta LPM Community Empowerment Journal KHITABAH: Khazanah Penelitian Perbankan Syariah Jurnal Polimesin Interaksi : Jurnal Pengabdian Kepada Masyarakat Joong-Ki ETERNAL: English Teaching Journal
Dodi Mulyadi
English Education, Universitas Muhammadiyah Semarang, Indonesia
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The Advanced Analysis of Deep Drawing Processes for 1-Inch Diameter Dop-Pipe Caps: Simulation and Experimental Insights Pratama, Tito Chaerul; Sukarman; Tikamori, Ghazi; Mulyadi, Dodi; Supriyanto, Agus; Amir, Amir; Khoirudin, Khoirudin; Hananto, Agus
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i1.7269

Abstract

This article investigates the challenges and solutions within the deep drawing process, focusing on issues like cracks and deviations from standard thickness dimensions. Utilizing both experimental methods with a 40-ton power press machine and numerical simulations via ABAQUS software, the study uses SPCC-SD steel to produce a Dop-pipe 1-inch diameter pipe cap. Key findings reveal significant correlations in elements E-90 and E-91, with minimal disparities of around 4.5% between experimental and numerical approaches, showcasing the accuracy of numerical predictions. Notably, the numerical simulations identify potential issues such as increased thickness due to higher axial forces, providing valuable insights for process optimization and defect reduction. By advancing the deep drawing process and extending its applicability to broader material-forming applications, this research contributes significantly to enhancing production efficiency and improving manufacturing practices, emphasizing the importance of simulation-driven approaches in achieving precision and quality enhancement in complex manufacturing processes.
Progressive Dies for L-hanger Ducting (L-HD) Utilizing Low-Carbon Steel SPCC-SD Material: An Experimental and Numerical Analysis Budiansyah, Ade Cepi; Taufik Ulhakim, Muhamad; Sukarman, Sukarman; Supriyanto, Agus; Amir, Amir; Mulyadi, Dodi; Khoirudin, Khoirudin
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i1.7763

Abstract

Industrial developments, especially in the manufacturing and construction sectors, recognize L-hanger ducting as a critical component in HVAC (heating ventilation and air conditioning) ducting systems, which play a role in supporting and stabilizing air ducts. The L-Hanger ducting manufacturing process involves a series of stages, such as shearing, blanking, piercing, trimming, and bending processes. This research focuses on the design and simulation of dies and punches for piercing, blanking, and bending processes using 1.6 mm-thick SPCC-SD material. The aim of this research is to design and analyze progressive dies in order to increase the efficiency of the production process. A comprehensive calculation of the forces involved in the shearing, blanking, piercing, trimming, and bending processes is required in order to predict press machine tonnage requirements to support the production process. This research applies theoretical and numerical validation approaches. Theoretical analysis is used to calculate the overall forces, which are then compared with numerical results and verified through an experimental approach. By understanding and optimizing the design of progressive dies, it is hoped that we can increase the production efficiency of L-hanger Ducting and expand knowledge in the field of metal forming, contributing to the metal forming industry and supporting the development of science.
Improving Dissimilar Metal Joining Quality Through Shielded Metal Arc Welding: A Taguchi Optimization Strategy Supriyanto, Agus; Sukarman, Sukarman; Mulyadi, Dodi; Djafar Shieddieque, Apang; Abdulah, Amri; Khoirudin, Khoirudin; Apang Djafar Shieddieque
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i1.7867

Abstract

The results of an experiment that used an orthogonal Taguchi method to improve shielded metal arc welding (SMAW) were given. The SMAW method was used to join dissimilar metal of SPHC and St. 30. SPHC material has a low carbon steel content, while St. 30C steels contain a medium amount of carbon steel, which is used for tractor shaft axles. Carbon percentages vary slightly between the two substances. This study aimed to achieve the highest possible quality of tensile strength by utilizing the specified SMAW parameters. SPHC material has a low carbon content, whereas St. 30 steel has a moderate carbon content. This study used the Taguchi experimental method with three input variables and three experimental levels. The SNR ratio is used to evaluate the most optimal SMAW performance. ANOVA analysis is used to evaluate the most crucial parameters in determining the response variable. This research has successfully provided input on the combination of SPHC and St. 30C for SMEs. It operates effectively with a welding current of 133 A, a welding voltage of 9 V, and a filler diameter of 2.0 mm. The S/N ratio analysis found that the welding current, voltage, and filler diameter all had a significant impact on the outcome.
A Comprehensive Study on Production Efficiency Enhancement Using Optimal Power Press Tonnage in Stamping Sukarman; Taufik Ulhakim, Muhamad; Khoirudin, Khoirudin; Mulyadi, Dodi; Amir, Amir; Suhara, Ade; Rahdiana, Nana
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.8048

Abstract

The use of press machines in stamping is an important aspect of the manufacturing industry, especially in producing efficient and quality components. This article aims to analyze the cost of the stamping process using mild steel SPCC-SD material measuring 200 mm x 25 mm x 0.8 mm, using two types of press machines, namely 80 tons and 40 tons. Through the cost analysis method, the total cost of the stamping process for the 80-ton press machine is Rp 16,417.4 per 10 pcs, while for the 40-ton press machine, it is Rp 15,028.5, indicating the cost efficiency of the 40-ton press machine is around 8.5%. The tonnage calculation shows that the 40-ton press machine is adequate for the blanking process, with a tonnage requirement of 4 tons, far below the available capacity. These results provide recommendations for the use of 40-ton press machines in the production of steel components on a small to medium scale, considering cost efficiency and optimal performance. This work is expected to increase productivity and cost efficiency in the manufacturing industry, especially at PT GA.
Parametric Analysis and Optimization of Sinker-EDM Process for High Tensile Strength Steel Using Response Surface Methodology Sukarman, Sukarman; Khoirudin, Khoirudin; Taufik Ulhakim, Muhamad; Mulyadi, Dodi; Amir, Amir; Abdulah, Amri; Rohman
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.9017

Abstract

This investigation focuses on optimizing the sinker electrical discharge machining (sinker-EDM) process parameters for high tensile strength steel (HTSS), specifically SKD-11, utilizing Box-Behnken Response Surface Methodology (BB-RSM). Sinker-EDM is a commonly used technique in manufacturing moulds, dies, and components for sectors like automotive and aerospace. This process eliminates direct contact between the electrode and the workpiece. However, its low material removal rate (MRR) constrains productivity. This research endeavours to enhance MRR by employing rectangular graphite electrodes. The Box-Behnken Response Surface Methodology (BB-RSM) was utilized to evaluate the effects of pulse current, spark-on time, and gap voltage on MRR. The optimal MRR of 45.49 mm³/min was attained at a pulse current of 16 A, spark-on time of 400 µs, and gap voltage of 45 V. ANOVA revealed that pulse current and spark-on time significantly influenced MRR. In contrast, gap voltage had an insignificant impact. Interaction and surface plot analyses confirmed that high pulse current and extended spark-on time resulted in the maximum MRR. These findings provide valuable insights for optimizing the sinker-EDM process for SHTSS, contributing to enhanced productivity and efficiency in manufacturing.
Enhancement Material Removal Rate Optimization of Sinker EDM Process Parameters Using a Rectangular Graphite Electrode Sukarman; Sumanto; Maulana, Acim; Mulyadi, Dodi; Khoirudin; Siswanto; Suhara, Ade; Safril
Jurnal Optimasi Sistem Industri Vol. 21 No. 2 (2022): Published in October 2022
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v21.n2.p87-96.2022

Abstract

This article discusses the optimization of sinker electrical discharge machining (sinker EDM) processes using SPHC material that has been hardened. The sinker EDM method is widely employed, for example, in the production of moulds, dies, and automotive and aeronautical components. There is neither contact nor a cutting force between the electrode and the work material in sinker EDM. The disadvantage of the sinker EDM is its low material removal rate. This work aims to optimize the material removal rate (MRR) using graphene electrodes in a rectangular configuration. The SPHC material was selected to determine the optimum MRR model of the sinker EDM input parameter. The Taguchi experimental design was chosen. The Taguchi technique used three input parameters and three experimental levels. Pulse current (I), spark on time (Ton), and gap voltage were among the input parameters (Vg). The graphite rectangle was chosen as an electrode material. The input parameter effect was evaluated by S/N ratio analysis. The result showed that pulse current has the most significant impact on material removal rate in the initial study, followed by spark on time and gap voltage. All input parameters are directly proportional to the MRR. For optimal material removal rate, the third level of pulse current, spark on time, and gap voltage must be maintained. In addition, the proposed Taguchi optimization model could be applied to an existing workshop floor as a simple and practical electronic tool for predicting wear and future research.
Enhancing TIG Welding Parameters For Direct Tensile Load (DT-load) On Various Steel Thicknesses Amar, Amar; Sukarman, Sukarman; Khoirudin, Khoirudin; Mulyadi, Dodi; Basit, Arul; Suhara, Ade; Shieddieque, Apang Djafar; Cahyo, Tegar Dwi
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4892

Abstract

The car body repair process is integral to vehicle development and structural repair. The primary objective of this study is to enhance the quality of thin material welding utilized in automobile body repair. The impetus for this research stems from the necessity to improve the structural integrity and longevity of thin materials prone to deformation throughout the welding procedure while minimizing distortion. This study aims to identify optimal parameters for the tungsten inert gas welding (TIG welding) process on thin materials, particularly for automobile body rearrangement. The Taguchi method conducted the experimental analysis of variations in welding parameters, including electrode diameter, gas flow rate, and welding current. Adjusting TIG welding parameters to their optimal values significantly improves weld joint direct tensile load (DT-load) and overall structural quality, according to the findings of this study. ANOVA analysis and the S-N ratio indicate that gas flow rate and welding current are significant determinants of the quality of welded joints in thin materials. This research contributes to a better understanding of the optimal parameters for fusing thin materials, particularly in automobile body repair. The automotive industry can use these findings as a guide to enhance the quality and strength of welding processes, which are critical to the structural integrity of vehicles.
Laser Marking Writing Analysis Using a Character Detection Camera to View Marking Results Nanda, Rizki Aulia; Karyadi; Mulyadi, Dodi; Supriyanto, Agus; Suhara, Ade; Rizki, Muhammad Nuzan
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 2 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i2.24917

Abstract

Laser marking has become an industrial trend to label a product to avoid problems arising from errors in product placement, labels can also be other markers depending on needs, laser marking can provide good writing prints on steel sheets. However, problems arise due to poor parameter input errors resulting in marking reading results that cannot be read by the scanner machine, this study aims to provide an analysis of the influence of laser marking input variations that can provide good marking quality, to determine the quality of marking, researchers use a Logitech camera assisted by Open CV programming, to see the quality of laser marking results that can be read by the scanner. This research method begins with inputting 6 parameter variations including speed, laser power and laser frequency, then Open CV programming is carried out to obtain image reading quality with color and line recognition, the reading results will automatically display the error level of the study. The results of the study explain the first test with a high error rate due to low input variables so that the reading is not clear, while the error value is 104040 in color recognition and 69024 in lines that are read with a 100% end range. The lowest error value is in the second test with the highest input variable, namely 1309 in black and white color recognition and 1345 in lines with a range of 100%, therefore the sixth test can be read clearly and well.
Belajar tanpa batas: Transformasi pembelajaran bahasa Inggris anak imigran melalui Mobile-Assisted Language Learning Wijayatiningsih, Testiana Deni; Mulyadi, Dodi; Budiastuti, Riana Eka; Setiawan, Anjar; Sucipto, Annisa Widya; Izatunnajah, Hana
Community Empowerment Journal Vol. 3 No. 4 (2025)
Publisher : CV. Yudhistt Fateeh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61251/cej.v3i4.294

Abstract

Pembelajaran bahasa Inggris bagi anak-anak imigran di Malaysia menghadapi tantangan yang kompleks, mulai dari rendahnya motivasi belajar, keterbatasan akses terhadap pendidikan formal, hingga minimnya pemahaman dan pemanfaatan media pembelajaran digital. Berdasarkan kondisi tersebut, program Pengabdian kepada Masyarakat (PkM) internasional ini bertujuan untuk meningkatkan keterampilan bahasa Inggris anak-anak imigran melalui penerapan Mobile-Assisted Language Learning (MALL), memperluas akses mereka terhadap pembelajaran yang bermutu, serta membangun kemandirian belajar melalui pemanfaatan teknologi mobile yang mudah dijangkau. Kegiatan ini dilaksanakan di Sanggar Bimbingan Sentul, Kuala Lumpur, dengan fokus pada penerapan MALL sebagai pendekatan pembelajaran yang fleksibel, mudah diakses, dan sesuai dengan kebutuhan siswa.Kegiatan ini dilaksanakan melalui beberapa tahapan: sosialisasi, pelatihan penggunaan media digital, pendampingan intensif, implementasi video pembelajaran berbasis YouTube, serta evaluasi yang dilakukan secara berkala. Hasil kegiatan menunjukkan peningkatan signifikan dalam kemampuan bahasa Inggris peserta, khususnya pada aspek penguasaan kosakata, keterampilan menyimak, keterampilan berbicara, serta kepercayaan diri dalam menggunakan bahasa Inggris. Rata-rata skor pre-test peserta sebesar 45 meningkat menjadi 75 pada post-test. Selain itu, sebanyak 83% siswa memberikan respon positif terhadap penggunaan MALL dan menilai pembelajaran menjadi lebih menyenangkan, interaktif, dan fleksibel. Temuan ini menegaskan bahwa MALL merupakan pendekatan pembelajaran yang humanis, inklusif, dan efektif bagi komunitas rentan seperti anak-anak imigran, sekaligus membuka peluang baru bagi pengembangan model pembelajaran berkelanjutan di masa depan. English language learning for immigrant children in Malaysia faces complex challenges, ranging from low motivation to learn, limited access to formal education, to minimal understanding and utilization of digital learning media. Based on these conditions, this international Community Service (PkM) program aims to improve the English skills of immigrant children through the implementation of Mobile-Assisted Language Learning (MALL), expand their access to quality learning, and build learning independence through the use of accessible mobile technology. This activity was carried out at the Sentul Guidance Center, Kuala Lumpur, with a focus on the application of MALL as a learning approach that is flexible, easily accessible, and tailored to student needs. This activity was carried out through several stages: socialization, training in the use of digital media, intensive mentoring, implementation of YouTube-based learning videos, and regular evaluations. The results of the activity showed a significant increase in the participants' English skills, particularly in aspects of vocabulary mastery, listening skills, speaking skills, and confidence in using English. The average pre-test score of 45 participants increased to 75 in the post-test. Furthermore, 83% of students responded positively to the use of MALL, finding learning more enjoyable, interactive, and flexible. These findings confirm that MALL is a humanistic, inclusive, and effective learning approach for vulnerable communities such as immigrant children, while also opening up new opportunities for developing sustainable learning models in the future.
Benefits and Challenges in Mastering Speaking Skills through Animated Movies: Students’ Perspective Wijayanto, Dimas; Mulyadi, Dodi; Wijayatinningsih, Testiana Deni
E-Structural (English Studies on Translation, Culture, Literature, and Linguistics) Vol. 8 No. 02 (2025): December 2025
Publisher : Universitas Dian Nuswantoro

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

Abstract

This research investigates the perspectives of eighth-grade students at SMPN 2 Semarang on the benefits and challenges of mastering English-speaking skills through animated movies. A mixed-method approach was employed in this study, integrating both qualitative and quantitative techniques. Data were collected through closed- and open-ended questionnaires and semi-structured interviews. The questionnaire was distributed to 108 eighth-grade students, while nine students were selected for in-depth interviews. The quantitative data from the questionnaires were analyzed using SPSS to identify statistical trends. At the same time, the qualitative responses from interviews were examined using NVivo software to code and categorize students’ perspectives. This combination provided comprehensive insights into the benefits and challenges of using animated movies in mastering English-speaking skills. The findings revealed that animated movies provided substantial benefits, particularly in enhancing vocabulary acquisition, increasing motivation, improving pronunciation, and boosting students’ self-confidence. Most students expressed that the visual and auditory nature of animated movies made it easier for them to understand and remember new vocabulary, learn correct pronunciation, and practice speaking more enjoyably. Nevertheless, some challenges remained, particularly in mastering grammar and overcoming anxiety when speaking in front of others. Despite these challenges, the study concludes that animated movies are effective and engaging tools for developing speaking skills and recommends their use in the English language learning process. The study's results provide insights for teachers, learners, and educational institutions in selecting appropriate media to support English instruction.  
Co-Authors Acim, Acim Ade Budi Setiawan Adip Rohadi Agus Suprihanto Agus Supriyanto Akhmad Faturrahman, Akhmad Alfiani, Prika Amar Amar Ambar Nur Aisiyah, Almadani Amir Amir Amri Abdulah Amrizal Amrizal Anggi Uswatun Najikha Anjar Setiawan Anjar Setiawan Anjar Setiawan Annisa Noerkhalifah Apri Budianto, Apri Arif Wibowo, Ludvi Arumsari, Maria Dewi Aufa Rafika Nur Aulia Nanda, Rizki Az Zahra, Ullayah Fathina Basit, Arul Budi Tri Santosa Budiansyah, Ade Cepi Cahyo, Tegar Dwi Cepi Budiansyah, Ade Charanjit Kaur Swaran Singh Chattaphorn Sriprasert Cicilia San San Indah Nilla Utomo Damayanti, Wulan Aprilia Dewadi, Fathan Dhawy, Luay Raihan Dian Candra Prasetyanti Dian Candra Prasetyanti Dian Candra Prasetyanti, Dian Candra Diana Hardiyanti Dini Anggraheni Dini Anggraheni Dini Anggraheni, Dini DWI YULIANTI Eko Andy Purnomo Endang Tri Wahyuni Maharani Eng Tek Ong Eng Tek Ong Eny Winaryati Eva Anis Shofi`ah Eva Dina Mareta Farizka Susandra Fazrin, Nazar Febiyanti Liza Riani Gina Sonia Gymanstiar , Salman Fahrizal Hammas Hidayatullah, Muhammad Hananto, Agustia Hanifah, Sekar Haque, Syaiful Hasti Robiasih, Hasti Hendarto, Vyrna Henita Rahmayanti Heri Dwi Santoso, Heri Dwi Irma Oktaviani Irma Oktaviani, Irma Iza Azizatul Baldah Izatunnajah, Hana Jayawarsa, A.A. Ketut Karyadi Karyadi Karyadi Khoirudin Khoirudin Khoirudin, Khoirudin Komariah, Popong Kumbarasari, Shanti Lailisya Putri, Purnama Lestari Nurjanah, Sri Eka llmi Zajuli Ichsan Maemonah, Maemonah Maria Dewi Arumsari Maulana, Acim Miftahudin, Moh Muhammad Muhibbi Muhfiyanti Muhfiyanti Muhimatul Ifadah Muhimatul Ifadah Muhimatul Ifadah Murdiana, Sesi Nabihah, Insyira Najikha, Anggi Uswatun Nana Darna Nanda Listiyawati Nanda, Rizki Nanda, Rizki Aulia Nasywa Kamila Rahmah Noerkhalifah, Annisa Noor Alhusna Madzlan Nor Azmi Mostafa Novia Wulan Ari Nugroho, Reesky Adi Nur, Aufa Rafika Nurul Inayah Tihurua Patya, Dhea Intan Pirman Ginting Pratama, Tito Chaerul Putra, Andika R Rahdiana, Nana Reesky Adi Nugroho Riana Eka Budiastuti Riana Eka Budiastuti Riana Eka Budiastuti, Riana Eka Rikarno Putra, Andika Rizki Aulia Nanda Rizky Amalia, Amanda Rohadi, Adip Rohimah, Nadya Khansa Rohman Rupiah, Sri Nikmatu Safira, Nisrina Zatin Safril Safril Safril Safuan Safuan Safuan Safuan Sajidin Shieddieque, Apang Djafar Shofi`ah, Eva Anis Shohenudin, Shohenudin Singh, Charanjit Kaur Swaran Siswanto Siti Aimah Siti Aimah Siti Aimah Siti Aimah Siti Arisah Siti Rohaya Sharif Siti Shuhaida Shukor Sobirin Sobirin Sobirin Sobirin Sri Nikmatu Rupiah Sucipto, Annisa Widya Sufiyah Dueraseh Sugeng, Santoso Suhara, Ade Sukarman Sukarman Sukarman Sulthan, Faqih SUMANTO Syaiful Haque Tarsame Singh Masa Singh Taufik Ulhakim, Muhamad Taufiqur Rokhman, Taufiqur Tee Tze Kiong Testiana D.W, Testiana Testiana Deni W Testiana Deni W, Testiana Deni Testiana Deni Wijayatiningsih Testiana Deni Wijayatiningsih Tihurua, Nurul Inayah Tikamori, Ghazi TRI HARTITI Ullayah Fathina Az Zahra Utomo, Cicilia San San Indah Nilla Wijatiningsih, Testiana Deni Wijayanto, Dimas Wijayatiningsih, Testiana Wijayatiningsih, Testina Deni Wijayatinningsih, Testiana Deni Wiwik Handayani Yoga Yuniadi Yuniarti, Nanda Eka Yunita Nugraheni Yusrin, Yusrin Yustinah Yustinah