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Analisis Metakognisi Peserta Didik Kelas V Sekolah Dasar dalam Memecahkan Masalah Matematika Bangun Ruang dalam Perspektif Teori Perkembangan Kognitif Jean Piaget Ade Firma Handriyani Putri; Dwi Ratna Sulistyowati; Mustika Fittari; Julianto Julianto; Wiryanto Wiryanto
Sekolah Dasar: Kajian Teori dan Praktik Pendidikan Vol. 33 No. 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um009v33i12024p26-39

Abstract

This study aims to determine the metacognition activities of elementary school students in solving Mathematics problems in geometric materials. This research is qualitative descriptive with a case study design. The subjects were six fifth-grade students. Data collection techniques by conducting task-based interviews on mathematical problem-solving questions, and documentation studies on students' work results for analysis. The collected data was analyzed by reducing data, and presented as a narrative. The results showed that the subjects showed metacognition activities and carried out the entire problem-solving process, but it was not fully constructed. It can be seen in several stages of indicators of metacognition activity that they can’t do well. This is reviewed from the perspective of Jean Piaget's developmental theory which shows that the subject is still at the stage of concrete operational cognitive development so that the subject can’t present new strategies in terms of formulas and methods obtained previously. Penelitian ini dilakukan untuk mengetahui aktivitas metakognisi peserta didik sekolah dasar dalam memecahkan masalah Matematika pada materi bangun ruang. Penelitian ini adalah penelitian deskriptif kualitatif dengan desain studi kasus. Subjek penelitian adalah enam anak peserta didik kelas 5 SD. Pengumpulan data dilakukan dengan wawancara berbasis tugas pada pertanyaan pemecahan masalah matematika, serta melibatkan studi dokumentasi pada hasil pekerjaan peserta didik untuk dianalisis. Data yang terkumpul selanjutnya dianalisis dengan melakukan reduksi data, kemudian disajikan dalam bentuk narasi. Hasil penelitian menunjukkan bahwa subjek penelitian menunjukkan aktivitas metakognisi dan melakukan seluruh proses pemecahan masalah, namun belum terkonstruksi dengan sempurna. Hal ini dapat dilihat pada beberapa tahap indikator aktivitas metakognisi yang tidak dapat mereka lakukan dengan baik. Hal ini ditinjau dari perspektif teori perkembangan Jean Piaget yang menunjukkan bahwa subjek masih berada pada tahap perkembangan kognitif operasional konkret sehingga belum memiliki kapasitas untuk menyajikan strategi baru dalam hal formula dan metode yang diperoleh sebelumnya.
Analisis pendidikan humanistik Ki Hajar Dewantara dalam konsep kurikulum merdeka belajar Wiryanto Wiryanto; Garin Ocshela Anggraini
Jurnal Penelitian Ilmu Pendidikan Vol. 15 No. 1 (2022): January–June
Publisher : Fakultas Ilmu Pendidikan, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpipfip.v15i1.41549

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Pendidikan humanistik menurut pandangan Ki Hajar Dewantara merupakan konsep pendidikan yang membentuk anak didik menjadi manusia yang merdeka lahir dan batin, sehingga dibentuknya suatu kurikulum merdeka belajar adalah untuk membantu guru dan peserta didik agar dapat merdeka dalam berpikir serta dapat membantu peserta didik untuk mengembangkan kreativitas dalam dirinya sesuai dengan potensi yang dimiliki. Penelitian ini bertujuan untuk menganalisis penerapan pendidikan humanistik Ki Hajar Dewantara dalam pembentukan kurikulum merdeka belajar. Penelitian ini termasuk jenis penelitian studi pustaka, teknik pengumpulan data melalui buku, teks jurnal, dan surat kabar. Hasil analisis, Pembentukan kurikulum merdeka belajar memiliki relevansi dengan pendidikan humanistik Ki Hajar Dewantara yang diterapkan melalui beberapa kebijakan merdeka belajar. Gagasan dari proses pendidikan Ki Hajar dewantara yaitu menggunakan metode among dan panca dharma, terealisasikan ke dalam program sekolah dan guru penggerak serta pembentukan karakter pelajar pancasila dan pengembangan keterampilan peserta didik yang berkaitan dengan keterampilan berpikir kritis, problem solving serta kemampuan berkomunikasi dan bekerjasama.Ki Hajar Dewantara's analysis of humanistic education in the concept of an independent learning curriculumHumanistic education according to Ki Hajar Dewantara's view is an educational concept that shapes students to become independent human beings physically and mentally, so that the establishment of an independent learning curriculum is to help teachers and students to be independent in thinking and can help students to develop creativity in themselves. according to their potential. This study aims to analyze the application of Ki Hajar Dewantara's humanistic education in the formation of an independent learning curriculum. This research includes the type of literature study, data collection techniques through books, journal texts, and newspapers. The results of the analysis, the establishment of an independent learning curriculum has relevance to Ki Hajar Dewantara's humanistic education which is implemented through several independent learning policies. The idea of Ki Hajar Dewantara's educational process, namely using the among and panca dharma methods, was realized in school programs and driving teachers as well as character building for Pancasila students and developing student skills related to critical thinking skills, problem-solving as well as communication and collaboration skills.
The Effect of the MURDER Learning Model on Primary Students’ Data Literacy and Mathematical Problem-Solving: A Quasi-Experimental Study Adhi Eka Widiawan; Wiryanto; Idha Novianti; Hadi Amroni
Journal of Mathematical Pedagogy (JoMP) Vol. 7 No. 1: December 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jomp.v7n1.p23-34

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According to cognitive scripting theory, systematic learning phases can significantly optimize information processing and enhance cognitive retention. Based on this theoretical justification, the Mood-Understand-Recall-Detect-Elaborate-Review (MURDER) model was implemented to address students' low proficiency in data analysis and probability. This study aims to evaluate the influence of the MURDER model on the data literacy and mathematical problem-solving abilities of fourth-grade students. Using a non-equivalent pretest-posttest control group design, the research involved 74 students in Primary Schools Cluster 2, Slahung District. Through purposive sampling, SDN 5 Slahung was designated as the treatment class ( =16) and SDN 3 Slahung as the control class ( =18). The statistical analysis for data literacy revealed a t-value of 2.91, exceeding the t-table value, which indicates a significant difference between the experimental and control groups. In contrast, mathematical problem-solving abilities yielded a t-value of 1.63, falling below the significance threshold. The study concludes that the MURDER model has a significant influence on data literacy both within and between groups. However, its impact on mathematical problem-solving was limited to within-group improvements only. These findings suggest that while cognitive scripting effectively builds literacy, additional logical scaffolding is required to bridge the gap in complex mathematical problem-solving.
PELATIHAN TANGRAM UNTUK GURU SEKOLAH DASAR DALAM MEMFASLITASI BERPIKIR KOMPUTASI Zaenal Abidin; Wiryanto Wiryanto; Ramadhan Kurnia Habibie
Jurnal Pengabdian Masyarakat FKIP UTP Vol 7 No 2 (2026): PROFICIO : Jurnal Abdimas FKIP UTP
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jpf.v7i2.6928

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Kemampuan berpikir komputasi (computational thinking) merupakan salah satu kompetensi esensial abad ke-21 yang perlu dikembangkan sejak jenjang sekolah dasar. Namun, masih banyak guru yang mengalami kesulitan dalam mengintegrasikan berpikir komputasi ke dalam pembelajaran karena keterbatasan pemahaman terhadap strategi pembelajaran yang sesuai dengan karakteristik peserta didik. Salah satu media yang dapat dimanfaatkan adalah tangram, yaitu permainan geometri yang mampu melatih kemampuan berpikir logis, pemecahan masalah, pengenalan pola, abstraksi, dan penyusunan algoritma. Kegiatan Pengabdian kepada Masyarakat (PKM) ini bertujuan meningkatkan kompetensi guru sekolah dasar dalam memfasilitasi berpikir komputasi melalui pemanfaatan media tangram. Kegiatan dilaksanakan di Kabupaten Pacitan dengan melibatkan guru-guru sekolah dasar sebagai peserta. Metode pelaksanaan terdiri atas tahap analisis kebutuhan, perencanaan, pelaksanaan pelatihan, praktik penyusunan aktivitas pembelajaran berbasis tangram, pendampingan, serta evaluasi. Materi pelatihan meliputi konsep berpikir komputasi, implementasi berpikir komputasi dalam pembelajaran sekolah dasar, penggunaan tangram sebagai media pembelajaran, dan penyusunan aktivitas pembelajaran yang mengintegrasikan elemen decomposition, pattern recognition, abstraction, dan algorithmic thinking. Hasil kegiatan menunjukkan adanya peningkatan pemahaman dan keterampilan guru dalam mengembangkan pembelajaran berbasis tangram untuk memfasilitasi berpikir komputasi peserta didik. Guru mampu merancang aktivitas pembelajaran yang lebih interaktif, kontekstual, dan berpusat pada peserta didik sesuai dengan karakteristik Kurikulum Merdeka. Selain itu, peserta menunjukkan antusiasme yang tinggi selama pelatihan serta mampu menghasilkan perangkat pembelajaran yang siap diimplementasikan di kelas. Dengan demikian, pelatihan tangram menjadi salah satu alternatif program pengembangan profesional guru yang efektif dalam mendukung pembelajaran inovatif sekaligus memperkuat kemampuan berpikir komputasi siswa sekolah dasar.
The Use of the Gamelan-Room Website in Ethnomatics-Based Geometry Instruction for Second-Grade Elementary School Students Zumrotus Sa'diyah; Zaenal Abidin; Wiryanto Wiryanto
Jurnal Review Pendidikan Dasar : Jurnal Kajian Pendidikan dan Hasil Penelitian Vol. 11 No. 2 (2025): Vol. 11 No.2 Juni 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrpd.v11n2.p223-240

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This study aims to determine the effectiveness of using the Gamelan-Room website as a learning medium on student achievement in the topic of plane figures. This study employed a quasi-experimental method using a nonequivalent control group design. The study involved two groups: a control class and an experimental class. Both groups were administered pretests and posttests to observe differences in learning outcomes before and after the intervention. The research subjects were second-grade students, with 26 students in the control class and 26 students in the experimental class. The results of the normality and homogeneity tests indicated that the data met the requirements for hypothesis testing. The results of the independent samples t-test showed that the control group’s average pretest score of 67.0 increased to 78.5 on the posttest, while the experimental group’s average pretest score of 60.5 increased to 84.0 on the posttest. The increase in learning outcomes for the experimental class was greater than that of the control class. From these research results, it can be concluded that the use of the Gamelan-Room website as a visual learning medium for the shapes and characteristics of plane figures proved to be effective in improving students’ mathematics learning outcomes compared to conventional instruction.
The Effectiveness of Problem Solving Based Student Worksheets in Improving Elementary School Students’ Computational Thinking Skills A Gender Perspective Analysis to Support the Achievement of SDGs 5 Rafi Afrizal Saputra; Zaenal Abidin; Wiryanto Wiryanto; Ramadhan Kurnia Habibie
Jurnal Review Pendidikan Dasar : Jurnal Kajian Pendidikan dan Hasil Penelitian Vol. 11 No. 2 (2025): Vol. 11 No.2 Juni 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrpd.v11n2.p184-207

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This study aims to determine the effectiveness of problem-solving-based Student Worksheets in improving the computational thinking skills of fourth-grade elementary school students on the topic of fractions. This study employs a pre-experimental method with a quantitative approach using a One Group Pretest–Posttest Design. The research subjects consisted of 23 fourth-grade students at SDN Sonokwijenan II/96. Data were collected through questionnaires as well as pretest and posttest instruments. The results showed a significant improvement in students’ computational thinking skills, with the average score increasing from 40 on the pretest to 65.32 on the posttest. The paired t-test results showed a significance value of 0.001 < 0.05, indicating a statistically significant difference. The N-Gain score was 0.42, which falls into the moderate category, and Cohen’s d effect size was 1.180, indicating a very strong effect. These findings indicate that the developed problem-solving-based worksheets meet the criteria of being valid, practical, and effective in enhancing students’ conceptual understanding and learning outcomes in fractions. These worksheets are designed to systematically integrate problem-solving stages, thereby helping students understand problems, formulate solution strategies, and evaluate the results obtained. Furthermore, the use of problem-solving-based worksheets provides a more meaningful learning experience as students are actively engaged in the learning process and encouraged to think logically and systematically when solving mathematical problems.
Analisis Kesulitan Belajar Matematika Pada Materi Luas Bangun Datar di SDN Gerbo V Kabupaten Pasuruan Wahyudi Sukur Sugianto; Wiryanto Wiryanto; Rooselyna Ekawati
JIPM (Jurnal Ilmiah Pendidikan Matematika) Vol. 14 No. 1 (2025)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jipm.v14i1.22424

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Geometri merupakan salah satu komponen penting dalam pembelajaran matematika di tingkat sekolah dasar dalam implementasi kurikulum merdeka. Salah satu elemen pokok yang diajarkan adalah pengukuran luas bangun datar. Tujuan utama dari pembelajaran geometri adalah untuk membantu siswa memahami karakteristik berbagai bentuk geometri, sehingga mereka dapat mengembangkan kemampuan berpikir kritis serta menerapkannya dalam penyelesaian masalah yang berkaitan dengan kehidupan sehari-hari. Penelitian ini difokuskan pada analisis kesulitan belajar siswa kelas V di SD Negeri Gerbo V, Kabupaten Pasuruan, dalam memahami dan menghitung luas bangun datar. Tujuan dari penelitian ini adalah untuk melakukan identifikasi kesulitan yang dihadapi siswa serta mencari solusi yang bisa diterapkan oleh guru dalam mengatasi kesulitan tersebut. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi eksploratif melalui pemberian tes uraian kepada 22 siswa. Dari hasil identifikasi, terdapat 22 siswa mengalami kesulitan dalam menyelesaikan luas bangun datar. Kesulitan tersebut di antaranya mencakup kurangnya pemahaman terhadap rumus bangun datar, kesalahan dalam penerapan rumus, dan kesalahan dalam menerapan data yang relevan. Hal itu dipengaruhi rendahnya motivasi belajar, serta lemahnya penguasaan konsep dasar operasi hitung seperti perkalian dan pembagian. Untuk mengatasi permasalahan tersebut, guru melakukan berbagai upaya seperti memberikan contoh konkret yang relevan, memotivasi siswa secara aktif, serta mengulang penyampaian materi dan latihan soal untuk memperkuat pemahaman siswa.   Geometry is one of the important components in mathematics learning at the elementary school level in the implementation of the independent curriculum. One of the fundamental elements taught is the measurement of the area of flat shapes. The main objective of geometry learning is to help students understand the characteristics of various geometric shapes, so they can develop critical thinking skills and apply them in solving problems related to everyday life. This research focuses on analyzing the learning difficulties of fifth-grade students at SD Negeri Gerbo V, Pasuruan Regency, in understanding and calculating the area of flat shapes. The objective of this research is to identify the difficulties faced by students and to find solutions that can be implemented by teachers to overcome these difficulties. This research uses a qualitative method with an exploratory study approach through the administration of descriptive tests to 22 students. From the identification results, 20 students experienced difficulties in solving the area of flat shapes. The difficulties include a lack of understanding of flat shape formulas, errors in applying the formulas, and mistakes in applying relevant data. This is influenced by low learning motivation, as well as weak mastery of basic arithmetic operations such as multiplication and division. To address these issues, the teacher undertakes various efforts such as providing relevant concrete examples, actively motivating students, and repeatedly delivering the material and practice questions to strengthen students' understanding. 
A NEEDS ANALYSIS OF PROJECT-BASED INTERACTIVE MULTIMEDIA FOR ENHANCING SPATIAL ABILITY IN ELEMENTARY SCHOOL STUDENTS Reni Setyaningsih; Wiryanto Wiryanto; Rini Setianingsih
Prima: Jurnal Pendidikan Matematika Vol. 10 No. 1 (2026): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v10i1.15231

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This study aims to analyze the needs for interactive multimedia based on Project-Based Learning (PjBL) in elementary schools. It was conducted in ten schools in Mojowarno sub-district, Jombang Cistrict, involving 227 fifth-grade students and 10 teachers. Data were collected using questionnaires consisting of 10 items for students and teachers, rated on a 5-point Likert scale. This research is motivated by the fact that students’ spatial abilities remain low, as reflected in the 2024 ANBK geometry scores, which were the lowest at 50.14. It underscores the need for effective learning media in mathematics instruction. The results of the questionnaire show the majority of students require digital learning media to facilitate understanding of lesson material (98.67%) and prefer media that integrate images, videos, animations, and games (86.34%). Both students and teachers expressed a need for interactive multimedia based on PjBL to support mathematics learning. The results of the questionnaire show that all teachers agreed on the importance of media that help students visualize abstract concepts (40% strongly agreed; 60% agreed) and media that are easy to use anytime and anywhere (60% strongly agreed; 40% agreed). These findings highlight the importance of developing interactive multimedia based on PjBL to enhance fifth-grade students’ spatial abilities and improve learning outcomes in mathematics.
GEOMETRIC STRUCTURE ANALYSIS OF MBAH BUYUT KI TUAN TOMB GATE AS A CONTEXTUAL LEARNING RESOURCE FOR DECOMPOSITION OF THREE-DIMENSIONAL SHAPES IN ELEMENTARY SCHOOL STUDENTS Margareta Sinta Wibawati; Wiryanto Wiryanto; Endah Budi Rahaju
Prima: Jurnal Pendidikan Matematika Vol. 10 No. 1 (2026): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v10i1.15407

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This research aims to analyze the potential of the geometric structure of the Mbah Buyut Ki Tuan Tomb gate in Karanglo Village as a contextual learning resource for three-dimensional shapes material, specifically decomposition skills and critical thinking enhancement in elementary school students. The study is motivated by the underutilization of local wisdom as an ethnopedagogical basis in mathematics learning, despite local traditions and cultural artifacts possessing strong visual-spatial values. The research employs a descriptive qualitative approach through direct observation, visual documentation, and interviews with local informants. Data were analyzed using reduction, categorization, and conclusion-drawing techniques. Results indicate that the tomb gate contains clearly identifiable three-dimensional shape elements recognizable to students, such as rectangular prisms in pillars and foundations, and cubes in upper ornamental sections. The gate structure can be decomposed into combinations of rectangular prisms and cubes, which can then be reconstructed as composite three-dimensional shapes. The analysis also reveals that utilizing this cultural object has potential to enhance the connection between mathematical concepts and real contexts, strengthen spatial visualization abilities, and promote critical thinking skills. Beyond mathematical values, relevant ethnopedagogical values were discovered, including respect for ancestors, mutual cooperation, and local cultural identity. The research concludes that the Mbah Buyut Ki Tuan Tomb gate is suitable as an ethnopedagogy-based contextual learning resource and can be integrated into digital media development, including Scratch, to enrich students' learning experiences. These findings provide a preliminary basis for developing locally culture-based mathematics learning media that is pedagogically valid and socially meaningful.
TRANSFORMASI MINAT BELAJAR MURID KELAS IV SD MELALUI IMPLEMENTASI APLIKASI FUN LEARNING GAME Prista Olga Virmawan; Wiryanto; Julianto
JS (JURNAL SEKOLAH) Vol. 10 No. 2 (2026): MARET 2026
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/b7aaqm85

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Abstract: This article aims to describe the transformation of learning interest among fourth-grade elementary school students through the implementation of the Fun Learning Game application as a game-based learning medium. The study used a quantitative approach with a quasi-experimental design of the non-equivalent control group type, involving an experimental class and a control class. Data on learning interest were collected using a Likert scale questionnaire and analyzed using inferential statistics. The results of the study showed a significant increase in learning interest among students in the experimental class, especially in terms of active involvement, interest in the media, and intrinsic motivation. These findings confirm that Fun Learning Game is an effective and relevant innovative medium for IPAS learning in elementary schools. Keyword: Learning Interest, Fun Learning Game, Game-Based Learning, IPAS, Elementary School   Abstrak: Artikel ini bertujuan mendeskripsikan transformasi minat belajar murid kelas IV SD melalui implementasi aplikasi Fun Learning Game sebagai media pembelajaran berbasis game-based learning. Penelitian menggunakan pendekatan kuantitatif dengan desain kuasi-eksperimen tipe non-equivalent control group design yang melibatkan kelas eksperimen dan kelas kontrol. Data minat belajar dikumpulkan melalui angket skala Likert dan dianalisis menggunakan statistik inferensial. Hasil penelitian menunjukkan peningkatan minat belajar yang signifikan pada murid kelas eksperimen, terutama pada aspek keterlibatan aktif, ketertarikan terhadap media, dan motivasi intrinsik. Temuan ini menegaskan bahwa Fun Learning Game merupakan media inovatif yang efektif dan relevan untuk pembelajaran IPAS di Sekolah Dasar. Kata Kunci: Minat Belajar, Fun Learning Game, Game-Based Learning, IPAS, Sekolah Dasar
Co-Authors Ade Firma Handriyani Putri Adhi Eka Widiawan Agung Lukito Ajeng Rara Veronica Ananda Wulan Putri Cahyani Anang Setiawan Andra Ena Fitri Mega Ramadani Anis Fauziana Anis Fauziana Anis Rizqiyatul Mukarromah Annisa Berlian Rizki Oktavia Arya Setya Nugroho Aulia Kholifatul Khasanah Budi Jatmiko Budiyono Budiyono Budiyono Budiyono Deah Uji Wulandari Delia Indrawati Dwi Nurvita Sari Dwi Ratna Sulistyowati Emy Yunita Rahma Pratiwi, Emy Yunita Rahma Endah Budi Rahaju Erwin Sarwanti Fajar Nur Yasin Fani Yantik Faridlotul Hasanah Fasyah Alya Syabrina Fitri Miftahul Jannah Garin Ocshela Anggraini Gianto Gianto Hadi Amroni Halimatussya’diyah Halimatussya’diyah Hardhika Wahyu Dewani HENDRATNO Herawati Aisyah Heru Subrata Hitta Alfi Muhimmah Idha Novianti Ika Dwi Retnowati Ika Rahmawati Indah Ainurrohmah Irma Ainur Fofiqoh Istianatur Rahmah Julianto Julianto Julianto Julianto Julianto Kartika Rinakit Adhe, Kartika Rinakit Lenthera Mega Devya M. Gita Primaniarta Mallevi Agustin Ningrum Margareta Sinta Wibawati Mega Teguh Budiarto Mohammad Fauziddin Mustika Fittari Mustika Kurniasari Nadya Nur Aini Naila Rosyada Nency Putri Muldash Neni Mariana Nenny Chanidatus Shofiyah Noer Mahmudiyah Novi Wulandari Nur Kumala Wardani Prista Olga Virmawan Rafi Afrizal Saputra Ramadhan Kurnia Habibie Reni Setyaningsih Rizki Nindi Handayani Rooselyna Ekawati Santi Agustiara Norairi Setianingsih, Rini Siti Maghfirotun Amin Sri Widayati Suprayitno Suprayitno Suprayitno Suprayitno Suryanti Suryanti Suryanti Suttrisno Tatag Yuli Eko Siswono Tataq Siswono Ulumul Umah Wahyu Sukartiningsih Wahyudi Sukur Sugianto Wiwik Endang Setyawati Yeni Dwi Ningrum Zaenal Abidin Zakirman Zumrotus Sa'diyah