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All Journal Jurnal Pendidikan dan Pengajaran Jurnal Pendidikan Indonesia Jurnal Infinity Jurnal Penelitian Pendidikan Kreano, Jurnal Matematika Kreatif-Inovatif Lembaran Ilmu Kependidikan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Jurnal Karya Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika AlphaMath: Journal of Mathematics Education Al-Jabar : Jurnal Pendidikan Matematika HISTOGRAM: Jurnal Pendidikan Matematika Scholaria: Jurnal Pendidikan dan Kebudayaan JRPM (Jurnal Review Pembelajaran Matematika) Jurnal Penelitian Pendidikan IPA (JPPIPA) International Journal on Emerging Mathematics Education Jurnal Cendekia : Jurnal Pendidikan Matematika Mimbar Ilmu Prima: Jurnal Pendidikan Matematika JKPM (Jurnal Kajian Pendidikan Matematika) Jurnal Pendidikan Matematika (JPM) Unnes Journal of Mathematics Education Research Journal of Primary Education Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Symmetry: Pasundan Journal of Research in Mathematics Learning and Education ANARGYA: Jurnal Ilmiah Pendidikan Matematika Indonesian Journal of Mathematics Education Journal of Authentic Research on Mathematics Eduacation (JARME) Integral : Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) Buana Ilmu Jurnal Sekolah Dasar (JSD) Jurnal Ilmiah Pendidikan Matematika Al Qalasadi jurnal syntax admiration Jurnal PEKA (Pendidikan Matematika) Kognitif: Jurnal Riset HOTS Pendidikan Matematika Unnes Journal of Mathematics Education Uninus Journal of Mathematics Educations and Science (UJMES) Bulletin of Applied Mathematics and Mathematics Education Jurnal Pendidikan Indonesia (Japendi) Euclid Circle: Jurnal Pendidikan Matematika Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang Jurnal Pendidikan Matematika Unnes Journal of Mathematics Education Hipotenusa: Journal of Mathematical Society Jurnal Infinity Mathematics Education Journal Paradigma: Jurnal Filsafat, Sains, Teknologi, dan Sosial Budaya Jurnal Pengabdian Kepada Masyarakat Indonesia EduGrows: Education and Learning Review Hayati: Journal of Education Eduma : Mathematics Education Learning and Teaching
Iwan Junaedi
Fakultas Ilmu Pengetahuan Alam, Universitas Negeri Semarang, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Mathematical Probabilistic Thinking Process Stages in Problems Solving Probability Taram, Abd; Sukestiyarno, Y. L.; Rochmad, Rochmad; Junaedi, Iwan
International Journal on Emerging Mathematics Education IJEME, Vol. 5 No. 1, March 2021
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijeme.v5i1.20005

Abstract

Probabilistic thinking is one type of thinking skills which belongs to the Higher Order Thinking Skills (HOTS). Students need to have the probabilistic thinking ability to face the life which is full of uncertainty. The purpose of this research is to formulate the stages of mathematical probabilistic thinking processes in solving probability problems. It was a descriptive qualitative research involving eight students of the 9th grade of SMP Muhammadiyah 3 Mlati Sleman Yogyakarta as the subjects. We administered a probabilistic thinking test and then observed and interviewed them to get the data. The data were then analyzed using triangulation method. This study resulted the five stages of mathematical probabilistic thinking process. They are: (1) understanding the problem of uncertainty that needs to be solved; (2) identifying all possibilities that will occur from a problem; (3) grouping the results of the identified event; (4) determining the probability of the occurred events; and (5) verifying the results.
The Mathematical Critical Thinking Ability Viewed from Mathematical Disposition in Guided Discovery Learning Model Assisted by GeoGebra Classroom Wahyu Nur Annisa; Iwan Junaedi; Iqbal Kharisudin
Jurnal Pendidikan Indonesia Vol 14 No 1 (2025): March
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpiundiksha.v14i1.85848

Abstract

One factor in students' low critical thinking abilities is the not yet optimal use of learning models and media. The aim of this research is to describe the mathematical critical thinking abilities of class X students in terms of mathematical disposition in the Guided Discovery Learning model assisted by GeoGebra Classroom. This research approach is a qualitative descriptive approach. The population in this study was class X vocational school. The subjects of this research were all students of class X TKR 2. Data collection techniques in this research used test, questionnaire and interview techniques. The selection of research subjects to obtain information through interviews is based on the results of mathematical disposition and mathematical critical thinking abilities. The research results show that Guided Discovery Learning model learning activities assisted by GeoGebra Classroom are effective And in the high mathematical disposition category there are two patterns of mathematical critical thinking ability, in the moderate mathematical disposition category there are four patterns of mathematical critical thinking ability, and in the low mathematical disposition category there are two patterns of mathematical critical thinking ability. The implication of this research is to provide significant insight into the world of education, especially in mathematics learning.
Systematic Literatur Review : Integrasi Literasi Matematika Pada Kurikulum Australia Widiyastuti, Erni; Junaedi, Iwan; Mulyono, Mulyono
ANARGYA: Jurnal Ilmiah Pendidikan Matematika Vol 8, No 1 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/anargya.v8i1.14188

Abstract

Mathematical literacy, as defined by the OECD, encompasses the ability to formulate, use, and interpret mathematics in various real-life contexts.This study aims to analyze how mathematical literacy is integrated into the Australian curriculum, given the importance of this competency in 21st-century education. Utilizing a Systematic Literature Review (SLR) approach, this study identifies, analyzes, and synthesizes relevant articles from the Scopus database .Analysis of these articles revealed that mathematical literacy is integrated through four main approaches. First, the development of new curriculum elements, such as linking numeracy with interdisciplinary concepts, enhances the relevance of learning. Second, the use of data from standardized tests, such as NAPLAN, supports data-driven interventions, although this approach is often mechanistic. Third, context- and culture-based learning, including the use of interdisciplinary activities and early childhood games, increases student engagement. Fourth, teacher training is pivotal to the successful implementation of integration strategies.This study provides conceptual and practical insights for developing inclusive, evidence-based, and diversity-responsive curricula. However, its reliance on literature necessitates further studies to evaluate the direct implementation of these strategies in Australian schools. The findings are expected to support flexible and effective educational policies to improve students’ mathematical literacy.
Systematic Literature Review (SLR): HOTS pada Kurikulum Matematika di Malaysia Fathurrohman, Fani Laffanillah; Junaedi, Iwan; Mulyono, Mulyono
ANARGYA: Jurnal Ilmiah Pendidikan Matematika Vol 8, No 1 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/anargya.v8i1.14274

Abstract

Higher Order Thinking Skills (HOTS) are among the skills developed within the mathematics curriculum. This study aims to describe the role of HOTS in the Mathematics Curriculum in Malaysia. The research method employed a Systematic Literature Review (SLR) using data sources from journals published between 2019 and 2024, obtained from Google Scholar and Scopus. The results show that: (1) the Standard Curriculum for Secondary Schools (KSSM) in Mathematics has been redesigned and refined to equip students with theknowledge, skills, and values necessary to meet the demands of the 21st century and to develop individuals with mathematical thinking abilities, including Higher Order Thinking Skills (HOTS); and (2) HOTS are explicitly stated within the curriculum to enable teachers to integrate them into the teaching and learning process, thus stimulating structured and focused student thinking. These skills encompass the application of knowledge, abilities, and values for reasoning, reflecting, problem-solving, decision-making, innovating, and creating
Mathematical Communication Ability in SAVI Learning Model with Mathematics Board Game in terms of Mathematical Resilience Ainurrachmani, Fitrania; Junaedi, Iwan; Dewi, Nuriana Rachmani
Unnes Journal of Mathematics Education Vol. 14 No. 1 (2025): Reguler Issue
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v14i1.20125

Abstract

This study aims to examine the quality of SAVI learning model implementation with a board game on mathematical communication skills, analyze the effect of mathematical resilience on mathematical communication skills, and describe mathematical communication skills in terms of mathematical resilience. This study used a mixed method of sequential explanatory type. The population of this research was all seventh-grade students of SMPIT Nidaul Hikmah Salatiga. The results showed that the implementation of the SAVI learning model with a quality math board game improved mathematical communication skills. Students' mathematical resilience has a positive effect on their mathematical communication skills. Students with high mathematical resilience fulfill all indicators of mathematical communication. Medium resilience students met indicators 2 and 3, needed guidance for indicators 1 and 4, and had not yet met indicator 5. Low-resilience students are only able to achieve indicators 1 and 4 with guidance. A special case, a student with high resilience and a habitual background of studying for Olympiads, showed significant differences between verbal and written mathematical communication.
Analysis of Critical Thinking Ability in Artificial Intelligence-Assisted Guided Inquiry Model Based on Mathematical Disposition Putri, Sanianajiba Nugroho; Junaedi, Iwan; Kharisudin, Iqbal
Unnes Journal of Mathematics Education Vol. 14 No. 2 (2025): Reguler Issue
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v14i2.31544

Abstract

This research aims to analyze the quality of implementing the Guided Inquiry learning model assisted by Artificial Intelligence on students’ critical thinking abilities and to describe students' critical thinking abilities based on their mathematical disposition after being given the Guided Inquiry learning model assisted by Artificial Intelligence. This study employed a mixed-methods approach used a sequential explanatory design. The quantitative research involved a population of 10th-grade students at MA Annidlomiyah. The selected samples were class X B as the experimental group and class X A as the control group. Research instrument in the form of a test of mathematical critical thinking abilities, mathematical disposition questionnaires, an interview, and student worksheets with data analysis was used with IBM SPSS 16. The qualitative research described critical thinking abilities based on high, medium, and low mathematical dispositions. The research results show that 1) The quality of implementing the Guided Inquiry model assisted by Artificial Intelligence met valid criteria at the planning stage, achieved a very good category at the implementation stage, and fulfilled learning effectiveness at the evaluation stage of results. 2) The description of students' critical thinking abilities is as follows: (a) Students with a high mathematical disposition demonstrated very good critical thinking abilities and were able to meet all four indicators of critical thinking ability. (b) Students with a medium mathematical disposition had critical thinking abilities that were not as good as those with a high mathematical disposition. Most students only met two to three indicators of critical thinking ability. (c) For students with a low mathematical disposition, there were two differences in critical thinking ability observed in this study. Some met three indicators, while others only met one indicator.
Exploring insights in the creative thinking process of prospective mathematics teacher students Akhsani, Lukmanul; Kartono; Junaedi, Iwan; Asih, Tri Sri Noor
Al-Jabar: Jurnal Pendidikan Matematika Vol 16 No 2 (2025): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v16i2.28396

Abstract

Purpose: This study aims to examine the effects of differentiated instruction on primary students’ mathematics achievement in the Indonesian context by comparing learning outcomes between classes taught with differentiated instruction and those taught with conventional methods.Method: This quantitative study employed a quasi-experimental, non-equivalent control group design with two intact grade 4 classes from a primary school in Indonesia. The experimental class received differentiated instruction based on students’ readiness, interests, and learning profiles, while the control class received conventional teaching. Data were collected using a validated mathematics achievement test with acceptable reliability. Assumptions were checked, and independent-samples t tests compared posttest achievement between groups.Findings: Students taught with differentiated instruction obtained significantly higher posttest scores than those in the control class, indicating a positive effect on mathematics achievement.Significance: The study provides empirical evidence that differentiated instruction can improve primary mathematics achievement in Indonesian classrooms. The findings offer practical guidance for teachers and inform school leaders and policymakers seeking strategies to enhance learning outcomes
Studi Perbandingan Implementasi Kurikulum Indonesia dan Kanada pada Mata Pelajaran Matematika Wanabuliandari, Savitri; Junaedi, Iwan; Mulyono, Mulyono
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 4 No. 4 (2024): October - December 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v4i4.2516

Abstract

Penelitian ini mengkaji perbandingan implementasi kurikulum matematika di Indonesia dan Kanada. Kedua negara ini memiliki pendekatan yang berbeda terhadap pengembangan kurikulum matematika. Penelitian ini bertujuan untuk mengkaji implementasi kurikulum pendidikan matematika di Indonesia dan Kanada. Kami menggunakan pendekatan studi literatur review dengan mengumpulkan dan menganalisis berbagai sumber data kurikulum Kanada dan Indonesia. Analisis data menggunakan kualitatif deskriptif. Peneliti mengumpulkan dan menganalisis berbagai sumber data dari kurikulum Kanada dan Kurikulum Indonesia. Dokumen yang dianalisis meliputi Kurikulum Merdeka dari Indonesia, Kurikulum Matematika Ontario dari Kanada, serta literatur pendukung seperti artikel jurnal dan laporan resmi terkait implementasi kurikulum matematika. Model analisis yang digunakan adalah deskriptif kualitatif dengan pendekatan analisis isi, yang berfokus pada perbandingan struktur, pendekatan pembelajaran, dan sistem penilaian dari kedua kurikulum. Analisis ini bertujuan mengidentifikasi persamaan, perbedaan, serta memberikan rekomendasi strategis untuk pengembangan kurikulum yang relevan dan efektif. Hasil penelitian menunjukkan bahwa terdapat perbedaan dalam struktur dan pendekatan pembelajaran, kurikulum matematika di Indonesia dan Kanada (Ontario) sama-sama menekankan pengembangan kompetensi siswa dalam pemahaman konsep, penerapan praktis, serta keterampilan berpikir kritis dan pemecahan masalah. Temuan ini diharapkan dapat memberikan pandangan bagi pengembangan kurikulum, agar pembelajaran matematika lebih efektif dan relevan di kedua negara, serta memperkuat praktik pengajaran matematika di seluruh dunia.
LE-Probale Model through Nila's Edumath Interactive Mobile Learning to Improve Mathematical Literacy Ubaidah, Nila; Zaenuri; Iwan Junaedi; Sugiman
Hipotenusa: Journal of Mathematical Society Vol. 6 No. 1 (2024): Hipotenusa: Journal of Mathematical Society
Publisher : Program Studi Tadris Matematika Universitas Islam Negeri (UIN) Salatiga

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

Abstract

Creating a supportive learning environment through psychological well-being is an important indicator in achieving true happiness in the learning process, and also through project-based learning so that it plays an important role in the learning environment and the results are very real. The aim of this research is to produce the LE-Probale model syntax. The learning model components used adopt Joyce and Weil. The quality of the product developed is evaluated based on product development evaluations developed by Plomp and Neeven, which include validity by validators, practicality and effectiveness of field trials by observers. The realization of the model syntax consists of ten stages, namely: 1) Preparing an adequate learning environment; 2) Delivery of learning objectives; 3) Selecting learning materials and determining topics that students must study inductively (from examples then generalizing); 4) Meaningful understanding is linked to everyday life; 5) Provide trigger questions to observe and solve; 6) Group formation; 7) Design and complete projects related to other subjects with the help of Nila's Islamic Edumath Interactive Mobile Learning; 8) Rearrange and compare representations of project results; 9) Evaluate the resulting projects; 10) Teacher and student reflection to look back at the learning that has taken place.
Systematic Review: Kemampuan Representasi Matematika dalam Pendidikan Selama 2019-2024 Maulana, Bagus Surya; Junaedi, Iwan; Munahefi, Detalia Noriza; Masrukan; Cahyono, Adi Nur
Jurnal PEKA (Pendidikan Matematika) Vol. 8 No. 2 (2025): Jurnal PEKA (Pendidikan Matematika)
Publisher : Program Studi Pendidikan Matematika Universitas Muhammadiyah Sukabumi (UMMI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37150/jp.v8i2.3225

Abstract

Mathematical representation encompasses verbal, visual, and symbolic forms, allowing students to articulate and manipulate mathematical ideas effectively. The review indicates that students with strong representation abilities perform better academically, as these skills facilitate deeper comprehension and application of mathematical principles. A systematic review of mathematics representation ability in education during 2019-2024 in this study from 2019 to 2024, Data collection was carried out by reviewing or reviewing all articles on mathematics representation ability in education published in the period 2019-2024. The articles used in this study were 3 articles from Scopus, and 2 articles from Google Scholar from international and national journals with the help of Publish or Perish software and VOSViewer. The results of this literature review suggest that specific research needs to be conducted on how to improve mathematics representation abbility, the school levels tested, as well as their applicability in education.
Co-Authors A.Kh, Ika Silfiana Abd Taram Abdul Kadir Adi Nur Cahyono Agung Setiawan Agus Yulianto Agus Yulianto Ahmad Gufron Ahmad Gufron Ainurrachmani, Fitrania Ali Djamhuri Amin Suyitno Andes Safarandes Asmara, Andes Safarandes Andi Saparuddin Nur anggita rahma ristayanti Anisa Rima Auliya Annisa Indrawati, Fiqi Anya Rizkya Ramadhani Ardiyanti, Yusi Ari Prasetyo Arianty, Alya Dwi Arief Agoestanto Ary Woro Kurniasih Asih, Tri Sri Noor Asikin, Muhammad Asiva Khoirunisa Astuti, Clara Rosita Hani Yuli Astutik, Desi Hijri Aunurrofiq, M. Awalya Awalya, Awalya Azizah, Maharani Nuur Azka, Fullu Azzahra, Nur Izzah Bambang Eko Susilo Bambang Eko Susilo Bambang Subali Budi Waluya Budi Waluyo Clara Rosita Hani Yuli Astuti Daniel Happy Putra Dea Erlita Dedi Muhtadi Destia Wahyu Hidayati, Destia Wahyu Devi Ajeng Efrilianda Dewi, Irmawati Liliana Kusuma Dewi, Nuriana Rachmani Dian Romadhina Dr. Masrukan, Dr. Edy Soedjoko Efrilianda, Devi Ajeng Eko Andy Purnomo Eling Purwantoyo Elsa Fadila Hasaroh Endang Werdiningsih, Endang Eny Winaryati Erina Siskawati Erina Siskawati Erlita, Dea Estanto, Doni Etik Rahayu Evi Herayani F. Muttaqid Alba Farid Ahmadi Fathurrohman, Fani Laffanillah Fauzi Fadliansyah fauziah putri Ferry Ferdianto Fifit Fitriani Fitriani, Fifit Fullu Azka Hadi Sumarto Hamidah Hamidah Hamidah Hamidah Hamidah, Hamidah Hardi Suyitno Hardi Suyitno Harsasi, Maya Harsasi Hasaroh, Elsa Fadila Hasyim, Moch. Syaefuddin Hendriani, Batul Fatin Ibnul Mubarak Ibnul Mubarok Iman Solahudin Iqbal Kharisudin Irfiani, Virga Isnaini Rosyida, Isnaini Isnarto Isnarto Isnarto, Isnarto Isnarto, Isnarto Isti Hidayah Jahfaludin, Abi Jaka Wijaya Kusuma Joko Sutarto Kafitra Marna Ibrahim Kartono Kartono , Khoirunnisa, Farah Dina Kintoko Kintoko Kintoko Kintoko Koimatul Chasanah Kristina Wijayanti Kumalasari, Desy kusnandar kusnandar Kusumawardani, Dyah Retno Lathifatun Ni'mah Lathifatun Ni'mah Lukmanul Akhsani Lukmanul Akhsani Lukmanul Akhsani M. Andi Safrudin M. Asikin, M. M. Asyrofi, M. Asyrofi Mafaza A’la, Muhammad Masrukan Masrukan Masrukan Masrukan Masrukan, Masrukan Masrukhan Masrukhan Maulana, Bagus Surya Maulana, Ginanjar Miladia Arina Manasikana Misbahul Munir Moch. Chotim Mochamad Guntur Mohammad Asikin Mohammad Qois Syafi Mubarak, Ibnul Muhammad Munsarif Mujib Mujib Mujinuranto, Bagas Mukarromah, Siti Mukhammad Toni Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono Mulyono, Mulyono Munahefi, Detalia Noriza Munahefi, Detalia Noriza Muttaqin, Wahyu Eka Putra Nazzun Sholikha Nurin Nila Ubaidah Nila Ubaidah Nila Ubaidah Noriza Munahefi, Detalia Nugraheni, Maulina Dhyan Nuhyal Ulia Nunu Nurhayati Nur Fauziah Siregar Nur Karomah Dwidayanti Nur Khasan Nuranita Adiastuty Nuriana Rachmadi Dewi Nuriana Rachmani Dewi Nuriana Rachmani Dewi Nuriana Rachmani Dewi Nurin, Nazzun Sholikha Nurina Hidayah Nurkaromah Dwidayati, Nurkaromah Nurul Ma’rifah Parmin Parmin - Parmin Parmin Parotua, Andar Jaya Prasetiawan, Aditya Hendra Priscilia, Priscilia Monica Praneswari Purnomo, Dhidik Joko Puspitasari, Elsa Putri, Sanianajiba Nugroho Putut Marwoto Rachmani Dewi, Nuriana Raharani, Fatkhiya An-Nisa Rahmawati, Nurlalili Tri Rahmayani, Bulan Restanto, Rudi Retno Puji Astuti Rochmad - S. B. Waluya Satrio Ardiansyah, Adi Savitri Wanabuliandari Scolastica Mariani Scolastika Mariani SETIYAWATI, NINIK Setiyono Riau, Budi Eko Shomad, Zahid Abdush Siti Mukarromah Sri Mulyati St. Budi Waluya Sudarsono, Ono Sugiman Sugiman Sugiman Sukestiyarno Sukestiyarno Sukestiyarno Sukestiyarno Sukestiyarno, Y. L. Sulhadi - Sunaringtyas, Afianita Dewi Sunyoto Eko Nugroho, Sunyoto Eko Suprayo, Try Supriyadi Supriyadi Suryono, Wiwik Ariyani Syafi, Mohammad Qois Taram, Abd Toni, Mukhammad Tuti Haryati Utami, Palupi Retno Utomo Venissa Dian Mawarsari Vita Istihapsari, Vita Wahyu Ning Dewi Kumalaretna Wahyu Nur Annisa Wahyu Nur Annisa Wahyu Ridlo Purwanto Wahyuningsih, Vebryana Walid Walid, Walid Wardono Wardono Wardono Wardono Warniatun, Warniatun Widiyastuti, Erni Wiharno, Wiharno Windi Dina Safitri Woro Sumarni Y L Sukestiyarno Y L Sukestiyarno Y. L. Sukestiyarno YL Sukestiyarno YL Sukestiyarno YL, Sukestiyarno YL. Sukestiyarno Yohanes Leonardus Sukestiyarno Zaenuri Zaenuri Mastur Zaenuri Zaenuri Zaenuri Zaenuri