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Iwan Junaedi

Fakultas Ilmu Pengetahuan Alam, Universitas Negeri Semarang, Indonesia

Author-ID : 293657

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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Penggunaan Model Problem Solving Dalam Meningkatkan Kemampuan Pemecahan Masalah Matematis Iman Solahudin; Kartono Kartono; Iwan Junaedi; Nuriana Rachmadi Dewi
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Pasca pandemic covid-19 berdampak pada sektor Pendidikan di berbagai dunia, salah satunya Indonesia. Dampak yang fundamental yaitu kesulitan guru dalam memberikan penilaian matematika secara komprehensif. penelitian ini bertujuan untuk mengetahui kemampuan pemecahan maslaah siswa serta mengukur keefektifan model Problem Solving dalam meningkatkan kemampuan pemecahan masalah siswa. penelitian ini menggunakan pendekatan campuran (mixed-method) dengan sampel sebanyak 20 orang siswa pada salah satu sekolah di Kabupaten Cirebon. Pengumpulan data menggunakan Tes dan Wawancara. Berdasarkan hasil analisis deskriptif dan Uji Hipotesis, skor siswa memiliki perbedaan rata-rata antara Pretest dan Postest, yaitu 90,12 untuk rata-rata Postes dan 80,75 rata-rata skor Prestes, berdasrkan uji Paired Tes terlihat nilai sig. sebesar 0,000 < 0,05, bermakna bahwa terdapat perbedaan rata-rata antara Pretest dan Postest. Dengan demikian model problem-solving Efektif dalam meningkatkan kemampuan pemecahan masalah matematis siswa.

Literasi Numerasi dan Berpikir Kritis: Systematic Literature Review Kintoko Kintoko; St. Budi Waluya; Iwan Junaedi; Nuriana Rachmani Dewi
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Selama dekade terakhir telah diserukan pembelajaran Abad 21 yang lebih fokus pada literasi, penalaran, dan berpikir kritis. Salah satu argumen utamanya adalah pendekatan tradisional yang berfokus pada keterampilan, prosedur, dan perhitungan, tidak mengarahkan siswa untuk bernalar atau berpikir kritis. Metode Systematic Literature Review dengan analisis bibliometrik digunakan untuk memetakan tren penelitian terkait literasi, penalaran, dan berpikir kritis dengan menganalisis dokumen secara komprehensif pada database Scopus periode 2012-2022. Terdapat lima tahapan penelitian ini, yaitu penentuan kata kunci, pencarian data, pemilihan dokumen, validasi data, dan analisis data. Hanya dokumen berupa artikel yang diterbitkan dalam jurnal yang digunakan. Biblioshiny dan NVivo digunakan untuk analisis data. Hasil penelitian menunjukkan bahwa literasi, penalaran, dan berpikir kritis telah menarik perhatian komunitas global. Jumlah publikasi meningkat signifikan mulai 2012, yang diiringi banyak sitasi. Amerika Serikat adalah negara terproduktif, diikuti Indonesia dan China. Indonesia telah mempublikasikan 35 artikel, dan sudah memiliki sitasi sebanyak 7 sitasi dan hanya 2 artikel sebagai penulis korespondensi. Penulis terproduktif dengan h-indeks tertinggi, yaitu Asari Ar. Pondasi pengetahuan yang kokoh telah dibangun oleh Pfannkuch dan Wild. University of Tasmania fokus meneliti topik ini, disusul University of California dan University of Haifa. Di Indonesia, 8 universitas meneliti topik ini, namun jumlahnya masih sedikit. Hal ini berarti masih terbuka peluang besar, topik ini untuk diteliti. Kata kunci terbanyak digunakan dalam artikel adalah “mathematic literacy”. Kata kunci baru yang masih tren adalah “engenering education research”. Pada peta tematik, terdapat sepuluh kluster. Kluster “engenering education” dan “engenering” merupakan tema motorik. Kluster “education”, “human geography”, “students”, “cybernetyc”, dan “geophysics” merupakan tema dasar. Kluster “critical thinking” dan “sustainable development” merupakan tema periferal. Kluster “human” merupakan tema khusus. Berdasarkan hal tersebut, tren penelitian terkini yaitu kolaboratif learning. Tema pendidikan memuat topik pembelajaran kolaboratif, critical learning, human, sedangkan tema statistika memuat topik asesmen, matematika, pendidikan tinggi, metode penelitian, dan pendidikan guru. Topik-topik ini hendaknya mendapat perhatian lebih untuk diteliti selanjutnya untuk melengkapi puzzle pengetahuan. Sumber primer terkait topik ini yaitu international journal of Scientific and technologi, international journal of Mathematical education in, Teaching Statistics, dan Eurasia Jurnal of mathematics, science and techno.

Pengaruh Motivasi Belajar Terhadap Kemampuan Berpikir Kreatif Mahasiswa pada Model PBL dengan Metode Socrates Lukmanul Akhsani; Kartono Kartono; Iwan Junaedi; Tri Sri Noor Asih Asih
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Abstrak. Matematika merupakan materi yang penting dan dipelajari dari tingkat dasar sampai dengan perguruan tinggi. Salah satu kemampuan yang penting yang perlu dimiliki oleh mahasiswa adalah kemampuan berpikir kreatif. Namun masih banyak kendala dalam pemebelajaran terkait dengan kemampuan tersebut. Tujuan dpenelitian adalah mengetahui pengaruh motivasi belajar mahasiswa terhadap kemampuan berpikir kreatif mahasiswa pada model PBL dengan metode Socrates. Penelitian ini dilaksanakan pada matakuliah Metode Numerik. Sampel penelitian yaitu mahasiswa Pendidikan Matemaika Universitas Muhammadiyah Purwokerto yang mengikuti perkuliahan Metode Numerik. Analisis yang dilakukan dengan menggunakan uji regresi linier dengan variable yang diteliti yaitu motivasi belajar sebagai variable bebas, kemampuan berpikir kreatif sebagai variable terikat. Hasil dari peneltian ini yaitu ada pengaruh positif motivasi belajar terhadap kamampuan berpikir kreatif mahasiswa. Penelitian ini dapat menjadi rujukan para pendidik untutk mengatasi permasalah pada kemampuan berpikir kratif mahasiswa.Abstract. Mathematics is an important material and is studied from elementary to college level. One of the important skills that students need to have is the ability to think creatively. However, there are still many obstacles in learning related to these abilities. The purpose of this study is to determine the effect of learning motivation on students' creative thinking skills in the PBL model using the Socratic method. This research was carried out in the Numerical Method course. The research sample is Mathematics Education students at Muhammadiyah University of Purwokerto who take the Numerical Method lecture. The analysis was carried out using a simple regression test with the variables studied, namely learning motivation and creative thinking ability. The result of this research is that there is a positive influence of learning motivation on students' creative thinking abilities. This research can be a reference for educators to overcome problems in students' creative thinking skills.

Aktualisasi Mathematical Literacy berbasis E-Scaffolding di Era Digital Nila Ubaidah; Zaenuri Zaenuri; Iwan Junaedi; Sugiman Sugiman; Wardono Wardono
Prosiding Seminar Nasional Pascasarjana Vol. 5 No. 1 (2022)
Publisher : Pascasarjana Universitas Negeri Semarang

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Abstrak: Tujuan dari penelitian ini adalah untuk mengetahui mathematical literacy mahasiswa berbasis e-scaffolding di era digital. Metode yang digunakan dalam penelitian ini adalah studi kepustakaan atau studi pustaka, dengan mengumpulkan data, membaca dan mencatat serta mengolah bahan penelitian. Hasil yang diperoleh adalah tingkat literasi matematika siswa, dan upaya peningkatan literasi matematika siswa, dengan menerapkan sistem pembelajaran pemahaman konsep dan pembiasaan siswa untuk memecahkan masalah literasi matematika, kemudian memotivasi siswa untuk belajar lebih banyak, dan juga memfasilitasi belajar siswa untuk belajar. berjalan lebih efektifTeknik scaffolding seperti interaksi dalam hal saling memberi umpan balik baik antar-mahasiswa maupun antara mahasiswa dengan dosen memainkan peran penting untuk terciptanya pembelajaran yang lebih kolaboratif. Artikel ini memaparkan hasil sintesa kajian literatur terkait pengembangan scaffolding, terutama tentang bagaimana membangun kerangka scaffolding yang terintegrasi dengan sistem ICT (e-scaffolding), tipe-tipe e-scaffolding yang akan dikembangkan, dan implementasinya dalam membantu mahasiswa untuk memecahkan masalah matematika. Abstract: The purpose of this study was to determine the mathematical literacy of students based on e-scaffolding in the digital era. The method used in this research is literature study or literature study, by collecting data, reading and taking notes and processing research materials. The results obtained are the level of students' mathematical literacy, and efforts to increase students' mathematical literacy, by implementing a learning system for understanding concepts and habituation of students to solve mathematical literacy problems, then motivating students to learn more, and also facilitating student learning to learn. run more effectively Scaffolding techniques such as interaction in terms of giving each other feedback both between students and between students and lecturers play an important role in creating more collaborative learning. This article describes the results of the synthesis of literature studies related to scaffolding development, especially about how to build a scaffolding framework that is integrated with the ICT system (e-scaffolding), the types of e-scaffolding that will be developed, and their implementation in helping students to solve mathematical problems.

Implementasi Problem Based Learning Berbantuan E-modul Untuk Optimalisasi Berpikir Geometris Venissa Dian Mawarsari; YL Sukestiyarno; Scolastica Mariani; Iwan Junaedi
Prosiding Seminar Nasional Pascasarjana Vol. 6 No. 1 (2023)
Publisher : Pascasarjana Universitas Negeri Semarang

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Geometri merupakan materi matematika terkait dengan kehidupan sehari-hari. Geometri adalah cabang matematika yang dapat menghubungkan matematika dengan bentuk nyata. Ketika belajar geometri maka kemampuan berpikir geometri akan muncul. Namun terjadi permasalahan dalam upaya peningkatan berpikir geometris siswa, sehingga perlu adanya desain pembelajaran sebagai solusinya. Dessain pembelajaran yang tepat adalah model Problem Based Learning (PBL) berbantuan e-modul, sehingga tujuannya adalah mengoptimalkan berpikir geometris siswa. Populasi penelitian ini adalah siswa kelas VIII MT Muhammadiyah 03 Ngargosari, sedangkan sampel penelitian terdiri dari siswa kelas VIII A dan VIII B yang dipilih dengan teknik sampling jenuh. Jenis penelitian ini adalah penelitian eksperimen semu dengan menggunakan metode kuantitatif . Penelitian ini menggunakan desain penelitian pretest-posttest control group design. Intrumen yang digunakan adalah tes berpikir goemetris. Hasil penelitian ini adalah 1). Adanya implementasi model PBL berbantuan media pembelajaran dapat meningkatkan kemampuan geometris dengan indeks N-Gain 0,68 dengan kategori kenaikan sedang, 2). Terdapat perbedaan yang signifikan kemampuan geometris kelas yang diajar dengan menggunakan model PBL berbantuan media pembelajaran dibandingkan pembelajaran konvensional. Berdasarkan hasil penelitian untuk kedepan dapat mengembangkan suatu model pembelajaran yang khusus untuk meningkatkan kemampuan geometris.

The Creative Thinking Process of Mathematics Education Students Based on the Wallas Thinking Stage in terms of Student Learning Barriers Lukmanul Akhsani; Iwan Junaedi; Tri Sri Noor Asih
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Numerical methods are a course that studies mathematical problem solving in a systematic way using numbers. Students still have obstacles in learning numerical methods. These obstacles occur in the mental preparation of students in attending lectures, the lecture process carried out by lecturers and students' academic abilities. The purpose of this study is to describe the creative thinking process of students based on the Wallas stage. The method used is qualitative. respondents are students of prospective mathematics teachers. The data was obtained by testing the ability to think creatively. The test results were analyzed by looking at the creative thinking process according to Wallas, namely preparation, incubation, illumination, and verification. Furthermore, an analysis of test answers and in-depth interviews was carried out based on student learning barriers based on the obstacles faced. Interviews were conducted to students who have high, medium and low learning barriers. In general, students have obstacles in the creative thinking process, namely students only use the method of completion without understanding its meaning. This happens because students do not understand the concept well. As a result, students will not be able to solve problems from the lecturer properly if the form or illustration of the questions is changed.

A Meta-Analysis On The Effect Of Ethnomathematics To Students’ Ability In Geometry Wahyu Ridlo Purwanto; Zaenuri Zaenuri; Wardono Wardono; Iwan Junaedi
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Geometry skills are fundamental in studying mathematics in three dimensions. In schools, it is expected to make schemes of methods and solutions so that students in junior high school can more easily understand geometry lessons by providing tangible examples in students' environments. One of the solution keys to mathematics lessons, especially in geometry, is to combine it with ethnomathematics. In this study, a meta-analysis is reviewed to present an empirical synthesis of studies designed to deliver a systematic design of ethnomathematics related to the meta-analysis's geometric learning education submission, empirical studies are used on the analysis of journal articles from 2015-2021. This research is focused on empirical studies using mixs-methods this meta-analysis conduct to gain knowledge of ethnomathematics on the general effect of students' geometric skills. This method aims to examine and combine all pertinent studies, both published and unpublished, so that a weighted mean effect size would be derived. This meta-analysis aims to review the quantitative results of empirical studies of the effect of ethnomathematics in conveying students' geometric abilities The results of this study are statistically significant with small mean scores on effect sizes and heterogeneity test results between studies. Linear models are used to describe the independent variables that affect all effect sizes. The meta-analysis results were obtained. The effect of ethnomathematics has a positive impact on learning geometry in secondary schools. Ethnomathematics can be used as a solution to learning geometry to improve students' geometry skills.

The Analysis of Problem Solving Ability Viewed from Intuition in Integral Calculus Course Eko Andy Purnomo; Yohanes Leonardus Sukestiyarno; Iwan Junaedi; Arief Agoestanto
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Students need to engage in analytical and logical thought processes, as well as the construction of mathematical knowledge and ideas, to solve problems. What these students are doing is an example of intuitive cognition. From what we can tell, many students, especially those taking Integral Calculus, do not fully use their mental capacities when attempting to solve issues. This research aimed to identify the extent to which intuition is used to solve problems encountered in the study of Integral Calculus. The method of this research was a descriptive qualitative method. A total of 43 participants from the FMIPA UNIMUS Mathematics Education Study Program participated in the study. The study's findings were that the problems persisted regardless of whether the children were high, middle, or poor achievers. The instruments used in this study are the evaluation questions, the intuition surveys, and the interviewing procedures for both the problem solver and the intuitive. They used evaluation tests, observations, and in-depth interviews to triangulate their results. Data analysis entails three stages: data reduction, display, and verification. Affirmatory intuition was most common among students with high problem-solving abilities. In contrast, those with average skills utilized a mix of Affirmatory and Anticipatory intuition. On the other hand, students with limited talents relied on Anticipatory intuition rather than actual intuition. The findings suggest that when presented with a problem, pupils' first instincts are not universal. It indicates that further investigation would develop pupils' innate ability to solve problems creatively.

Mathematical Problem-Solving Ability from Self-Regulated Learning for Class 10th Senior High School Students Nurina Hidayah; Windi Dina Safitri; Zaenuri Zaenuri; Iwan Junaedi; Masrukhan Masrukhan
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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There is a relationship between mathematical problem-solving ability and student self-regulated learning. Data collection using trigonometric comparison math problems and self-regulated learning questionnaires. The subjects in this study were students of class 10th at senior high school 1 Doro. They were taking research subjects based on the category of student self-regulated learning consisting of low, medium, and high levels. Data analysis techniques in this study are data reduction, data presentation, and conclusion drawing. Four indicators of problem-solving ability are used, including understanding the problem, designing problem-solving strategies, performing calculations, and looking back at the problem-solving results. The results indicate that students with a high level of self-regulated learning have problem-solving abilities that tend to be better. Students with high self-regulated learning can meet the indicators of problem-solving ability at the stage of understanding the problem. They are less able at stages to design problem-solving strategies and perform calculations. The finding is that the subject cannot meet the step of looking back on problem-solving. Second, students with moderate self-regulated learning have problem-solving abilities that tend to be quite good. Students in moderate self-regulated learning have not been fully able to meet the indicators of problem-solving ability in understanding the problem. They are unable to complete the other problem-solving stages. Third, students with low levels of self-regulated learning have problem-solving abilities that tend to be less good. Students in this category cannot meet the four indicators of problem-solving ability.

Mathematical Literacy: Ethnomathematics in PISA Leveling Representations Nila Ubaidah; Zaenuri Zaenuri; Iwan Junaedi; Sugiman Sugiman
International Conference on Science, Education, and Technology Vol. 8 (2022)
Publisher : Universitas Negeri Semarang

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Mathematical literacy is logical reasoning in solving mathematical problems. But over time, the meaning of mathematical literacy also develops and is often associated with a person's ability to identify and understand problems in which mathematics plays a role in all areas of life. The purpose of this study is to represent Mathematics Literacy Problems in PISA leveling associated with ethnomathematics and can be used as examples to deliver teaching materials in schools. The research used is a qualitative descriptive study with the object of research is the Culture of the Kutai Society, which is represented in the Mathematical Literacy problem of the PISA Socio-Cultural Context Model. From the research, it was found that the Technique of Designing PISA Model Mathematical Literacy Questions Using the Socio-Cultural Context of the Kutai Community contained 3 things in designing the PISA model grids and math problems based on argumentation indicators. The problem design process is carried out by prototyping using three characteristics, namely content, construct, and language.

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 Aâ€™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

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