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Sadiana Lase

Prodi Pendidikan Matematika, Universitas Nias

Author-ID : 1096430

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Pengembangan Modul Pembelajaran Berbasis Project Based Learning Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa SMP Negeri 1 Hiliduho Mendrofa, Versily; Mendrofa, Netti Kariani; Mendrofa, Ratna Natalia; Lase, Sadiana
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 4 No. 3 (2025): Matematika, IPA, dan Pembelajarannya
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v4i3.345

Mathematical problem-solving ability is one of the essential competencies that students must master. However, initial observations at SMP Negeri 1 Hiliduho revealed that students’ problem-solving skills are still relatively low, and Project Based Learning (PjBL)-based teaching materials have not yet been applied in the school. This study aims to develop a PjBL-based instructional module that is valid, practical, and effective in improving students’ mathematical problem-solving ability. The research was conducted using a development approach with the ADDIE model, which includes five stages: analysis, design, development, implementation, and evaluation. Research instruments consisted of expert validation questionnaires, practicality questionnaires for teachers and students, and a problem-solving test. The data collected were both qualitative and quantitative. Qualitative data were obtained from comments, suggestions, and feedback provided by validators, while quantitative data were derived from the results of validation scores, teacher and student responses, and students’ test results. The research findings showed that the developed learning module was highly valid, as evidenced by validation scores of 98% and 99% from two content experts, 96% from the language expert, and 98% from the design expert. The module was also considered highly practical, with a score of 90.63% from students and 93% from the teacher. Furthermore, the module proved effective in enhancing students’ mathematical problem-solving skills, with an average score of 80.25 (high category) and classical completeness of 83.33% (high category). In conclusion, the PjBL-based module developed in this study fulfilled the criteria of validity, practicality, and effectiveness, thus supporting the achievement of learning objectives.

Efektivitas Model Connected Mathematics Project Terhadap Kemampuan Koneksi Matematis Siswa Ditinjau Dari Kemampuan Awal Gulo, Irwan Krisman; Mendrofa, Netti Kariani; Lase, Sadiana; Mendrofa, Ratna Natalia
Venn: Journal of Sustainable Innovation on Education, Mathematics and Natural Sciences Vol. 4 No. 3 (2025): Matematika, IPA, dan Pembelajarannya
Publisher : Pusat Studi Bahasa dan Publikasi Ilmiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53696/venn.v4i3.346

Penelitian ini dilatar belakangi berdasarkan hasil studi pendahuluan yang dilakukan peneliti di UPTD SMP Negeri 1 Moro’o. Ditemukan masalah yaitu (1) kemampuan koneksi matematis siswa masih kurang (2) kemampuan awal siswa belum optimal. Tujuan penelitian ini adalah untuk mengetahui efektifitas connected mathematics project terhadap kemampuan koneksi matematis ditinjau dari kemampuan awal UPTD SMP Negeri 1 Moro’o. Populasi penelitian ini adalah kelas VIII dan sampel penelian terdiri dari dua kelas yaitu kelas VIII-A sebagai kelas eksperimen dan kelas VIII-B sebagai kelas kontrol di UPTD SMP Negeri 1 Moro’o yang berjumlah 57 siswa. Teknik pengambilan sampel dilakukan dengan teknik Nonprobability sampling. Jenis penelitan ini adalah kuantitatif dengan metode penelitian eksperimen semu (quasi eksperimen design), dan instrumen penelitian ini berbentuk uraian kemampuan koneksi matematis siswa. Hasil rata-rata tes dari kelas eksperimen diperoleh sebesar 71,75 dan kelas kontrol sebesar 59,57. Hasil ini menunjukan adanya peningkatan kemampuan koneksi matematis siswa yang dilihat dari rata-rata tes awal kelas eksperimen diperoleh sebesar 50,24 dan kelas kontrol sebesar 46,14. Dengan demikian, penggunaan model Connected Mathematics Project secara tepat oleh guru dan siswa dapat meningkatkan kemampuan koneksi matematis secara aktif, kreatif, dan kontekstual.

PENGARUH MODEL PEMBELAJARAN DISKURSUS MULTI REPRESENTASI (DMR) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA UPTD SMP NEGERI 7 GUNUNGSITOLI Giawa, Nurul Ihsani; Telaumbanua, Yakin Niat; Lase, Sadiana; Mendrofa, Ratna Natalia
PENDIDIKAN SAINS DAN TEKNOLOGI Vol 12 No 4 (2025)
Publisher : STKIP PGRI Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47668/edusaintek.v12i4.2064

This study is based on the results of a preliminary study conducted by researchers at UPTD SMP Negeri 7 Gunungsitoli, found problems, namely (1) the learning model in the classroom is less varied and (2) the lack of students' mathematical problemsolving abilities in solving mathematical problems. The purpose of this study was to determine the effect of the Multi Representation Discourse (DMR) learning model on the mathematical problemsolving abilities of students at UPTD SMP Negeri 7 Gunungsitoli. This type of research is quantitative research using a quasiexperimental method with a pretest-posttest control group design. The population of this study was grade VIII students and the research sample consisted of two classes, namely VIII-C as the experimental class and VIII-A as the control class. The instrument in this study was in the form of a mathematical problemsolving ability essay test. The results of the study obtained based on oneparty hypothesis testing obtained a tcount value = 5,283 and a ttable value = 1.678. Because tcount > ttable or 5,283> 1.678, reject H0 and accept Ha, which means "there is an influence of the Multi Representation Discourse (DMR) learning model on students' mathematical problemsolving abilities".

PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) TERHADAP HASIL BELAJAR MATEMATIKA SISWA SMP NEGERI 4 ALASA PADA KURIKULUM MERDEKA Zalukhu, Putri Wulandari; Mendrofa, Ratna Natalia; Telaumbanua, Yakin Niat; Lase, Sadiana
PENDIDIKAN SAINS DAN TEKNOLOGI Vol 12 No 4 (2025)
Publisher : STKIP PGRI Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47668/edusaintek.v12i4.2066

This study was motivated by the low mathematics learning outcomes among students, their limited engagement during the learning process, and the unappealing presentation of learning materials at SMP Negeri 4 Alasa. The purpose of this research was to examine the effect of the Project-Based Learning (PjBL) model on students' mathematics learning outcomes within the Merdeka Curriculum. This experimental study employed a quasi-experimental method using a Nonequivalent Control Group Design. The research subjects included all seventh-grade students at SMP Negeri 4 Alasa, with class VII-B (30 students) serving as the experimental group taught using the PjBL model, while class VII-A (30 students) served as the control group using conventional teaching methods. The instrument used was an essay-based learning outcome test comprising five questions. Data analysis results showed that the calculated t-value was greater than the critical t-value (4.855 > 1.671). Thus, H0 was rejected, and Hₐ was accepted, indicating that the implementation of the Project-Based Learning (PjBL) model had a significant effect on students' mathematics learning outcomes under the Merdeka Curriculum.

Pengaruh Model Pembelajaran Realistic Mathematic Education (RME) terhadap Kemampuan Berpikir Kritis dan Self-Efficacy Siswa Gulo, Devi Ratna Sari; Mendrofa, Netti Kariani; Zega, Yulisman; Lase, Sadiana
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 4 No. 3 (2024): July - September 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v4i3.2003

Studi awal menunjukkan bahwa: (1) model pembelajaran didalam kelas kurang bervariasi, (2) kurangnya kemampuan berpikir Kritis siswa dan (3) Kurangnya keyakinan diri siswa dalam menyelesaikan soal matematika. Oleh karena itu penelitian ini bertujuan (1) mengetahui pengaruh model pembelajaran Realistic Mathematic Education terhadap kemampuan berpikir kritis dan (2) mengetahui pengaruh model pembelajaran Realistic Mathematic Education terhadap self-efficacy siswa. Kami menggunakan pendekatan kuantitatif menggunakan metode eksperimen semu dengan desain Nonequivalent Control Group Design. Penelitian ini melibatkan siswa kelas VIII UPTD SMP Negeri 1 Mandrehe dengan mengambil dua sampel penelitian terdiri dari dua kelas yaitu VIII-C sebagai kelas eksperimen dan VIII-D sebagai kelas kontrol. Data dikumpulkan dengan menggunakan instrumen tes dan angket. Analisis data dilakukan dengan cara menghitung nilai akhir siswa, menghitung rata-rata nilai, dan menghitung simpangan baku. Setelah data dianalisis, untuk hasil tes dilakukan uji normalitas (Uji Liliefors), uji homogenitas (Uji Fisher) dan pengujian hipotesis yang digunakan adalah uji t. Sedangkan untuk hasil angket, pengujian hipotesis menggunakan uji Z dua sampel. Hasil penelitian yang diperoleh bahwa (1) Ada pengaruh model pembelajaran Realistic Mathematic Education terhadap kemampuan berpikir kritis, (2) Ada pengaruh model pembelajaran Realistic Mathematic Education terhadap self-efficacy siswa. Model pembelajaran Realistik Mathematic Education dapat diimplikasikan bagi guru matematika untuk melaksanakan proses pembelajaran, sehingga siswa dapat lebih aktif dan mampu memahami materi dengan tepat serta menerapkannya dalam kehidupan sehari-hari dan dapat meningkatkan kemampuan berpikir kritis dan self-efficacy siswa menjadi lebih baik

PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING (PJBL) TERHADAP LITERASI NUMERASI DAN MINAT BELAJAR MATEMATIKA SISWA Zega, Pretty Souvenir; Telaumbanua, Yakin Niat; Lase, Sadiana; Mendrofa, Netti Kariani
JURNAL MathEdu (Mathematic Education Journal) Vol 8 No 3: JURNAL MathEdu (Mathematic Education Journal) November 2025
Publisher : Program Studi Pendidikan Matematika Institut Pendidikan Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37081/mathedu.v8i3.7551

This research is based on the results of a preliminary study conducted by the researcher at SMP Negeri 2 Lotu, which found several problems, namely (1) the low numeracy literacy skills of students, due to the lack of variation in the learning models used by teachers, and (2) the low interest in learning mathematics among students. The purpose of this study is to determine: (1) the effect of the project based learning model on students' numeracy literacy, and (2) the effect of the project based learning model on students' interest in learning mathematics. This research is a quantitative study using a quasi-experimental method with a nonequivalent control group design. The population in this study was all seventh-grade students, and the sample consisted of two classes: class VII-A as the experimental class and VII-B as the control class. The research instruments used were tests and questionnaires. The results of the study showed that: (1) The numeracy literacy result obtained a thitung value of 9.849 and ttabel value of 2.017, because thitung ttabel, H₀ is rejected and H₁ is accepted. (2) The result for students’ learning interest obtained a thitung value of 20.753 and ttabel value of 2.017, because thitung ttabel, H₀ is rejected and H₁ is accepted. It can be concluded that: (1) The project based learning model had a significant effect on students’numeracy literacy. This is shown by the post-test average score of the experimental group being 78 (high category), which is higher than the control group’s score of 63,56 (moderate category). (2) The project based learning model also had a significant effect on students’ interest in learning mathematics. The average score of the learning interest questionnaire in the experimental group reached 89,40 (very high category), while the control group only reached 55,78 (moderate category).

ANALISIS KOMPETENSI CALON GURU MATEMATIKA DALAM PEMANFAATAN INFORMATION AND COMMUNICATION TECHNOLOGY (ICT) PEMBELAJARAN MATEMATIKA ZAI, EDISON; TELAUMBANUA, YAKIN NIAT; LASE, SADIANA; MENDROFA, NETTI KARIANI
SECONDARY: Jurnal Inovasi Pendidikan Menengah Vol. 5 No. 1 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/secondary.v5i1.4396

This research is motivated by the lack of ability of prospective mathematics teachers in utilizing Information and Communication Technology (ICT) in mathematics learning. Information and Communication Technology (ICT) is the most important thing in keeping up with current technological advances. The aim of carrying out this research is to determine the competence of prospective mathematics teachers in using Information and Communication Technology (ICT) in mathematics learning. This type of research is quantitative research with a descriptive approach. This was done to test how much prospective mathematics teachers have competence in utilizing Information and Communication Technology (ICT) in mathematics learning if they already become teachers. The research instruments used were questionnaires and structured interview questions consisting of several closed and open questions. The number of respondents who participated was 48 people from the Mathematics Education Study Program. Research results: the majority of prospective students in mathematics education study programs have basic knowledge of ICT and are familiar with the types of use of ICT in mathematics learning, as well as providing positive views/opinions towards the use of Information and Communication Technology in mathematics learning. ABSTRAKPenelitian ini dilatar belakangi oleh minimnya kemampuan calon guru matematika dalam pemanfaatan Information and Communication Technology (ICT) pada pembelajaran matematika. Information and Communication Technology (ICT) merupakan hal yang paling utama dalam mengikuti kemajuan teknologi pada saat ini. Tujuan pelaksanaan penelitian ini yaitu mengetahui kompetensi calon guru matematika dalam pemanfaatan Information And Communication Technology (ICT) dalam pembelajaran matematika. Jenis penelitian ini adalah penelitian kuantitatif dengan pendekatan deskriptif. Hal ini dilakukan untuk menguji seberapa besar calon guru matematika memiliki kompetensi dalam memanfaatkan Information and Communication Technology (ICT) dalam pembelajaran matematika jika sudah menjadi guru. Instrumen penelitian yang digunakan adalah angket (kuesioner) dan pertanyaan wawancara terstruktur yang terdiri dari beberapa pertanyaan bersifat tertutup dan terbuka. Jumlah responden yang berpartisipasi sebanyak 48 orang dari Program Studi Pendidikan Matematika. Hasil penelitian: sebagain besar mahasiswa/i calon guru program studi pendidikan matematika memiliki pengetahuan dasar terhadap ICT dan mengenal tentang jenis-jenis penggunaan ICT dalam pembelajaran matematika, serta memberikan pandangan/pendapat yang positif terhadap penggunaan Information and Communication Technology dalam pembelajaran matematika.

PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING TERHADAP KEMAMPUAN LITERASI MATEMATIKA SISWA HALAWA, YUFITA; LASE, SADIANA; TELAUMBANUA, YAKIN NIAT; HAREFA, AMIN OTONI
SECONDARY: Jurnal Inovasi Pendidikan Menengah Vol. 5 No. 1 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/secondary.v5i1.4397

The study in the background was based ona preliminary study taken at the country junior high school of gunungsitoli alo 'oa, a problem was found (1) that the selection of poorly used learning models was conventional and (2) lack the students' mathematical literacy ability to solve math problems. The purpose of this study is to identify the impact a project based learning model has on student math literacy capability. Research population is class viii of country junior high 1 gunungsitoli alo 'oa year of lesson 2024/2025. The research sample was a viii-a class and a viii-b class of 50 people. Sampling retrieval technique using the simple random sampling. Quantitative research using pseudo-experimental methods. And research instruments in the form of a description of the students' mathematical literacy abilities. Research obtained based on hypothesis testing with statistika parametrics (test t independent), thitung's 1.993 and ttable's 1.678, as thitung> ttable, makes the ho accepted and ha rejected which means: the project based learning model learning is based learning capability. ABSTRAKPenelitian ini dilatarbelakangi berdasarkan hasil studi pendahuluan yang dilakukan di SMP Negeri 1 Gunungsitoli Alo’oa, ditemukan masalah yaitu (1) pemilihan model pembelajaran masih kurang tepat yang digunakan masih bersifat konvensional dan (2) Rendahnya kemampuan literasi matematika siswa dalam menyelesaikan soal matematika. Tujuan dari penelitian ini untuk mengetahui pengaruh model pembelajaran Project Based Learning terhadap kemampuan literasi matematika siswa. Populasi penelitian adalah kelas VIII SMP Negeri 1 Gunungsitoli Alo’oa Tahun Pelajaran 2024/2025. Sampel penelitian adalah kelas VIII-A dan kelas VIII-B yang berjumlah 50 orang. Teknik Pengambilan sampel dengan teknik simple random sampling. Penelitian Kuantitatif dengan menggunakan metode eksperimen semu (quasi eksperimen design). Dan instrumen penelitian berbentuk soal uraian kemampuan literasi matematika siswa. Hasil penelitian yang diperoleh berdasarkan pengujian hipotesis dengan statistika parametrik (uji t independent), diperoleh thitung sebesar 1,993 dan ttabel sebesar 1,678, Karena thitung > ttabel, maka Ho diterima dan Ha ditolak yang berarti : Adanya pengaruh model pembelajaran project based learning terhadap kemampuan literasi matematika siswa.

Pengaruh Model Pembelajaran Flipped Classroom Terhadap Kemampuan Pemecahan Masalah Matematis Siswa Ndruru, Melida; Telaumbanua, Yakin Niat; Harefa, Amin Otoni; Lase, Sadiana
Indonesian Research Journal on Education Vol. 4 No. 4 (2024): irje 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v4i4.1034

Salah satu permasalahan pada pembelajaran matematika di SMK Negeri 1 Gunungsitoli yakni kemampuan pemecahan masalah matematis siswa yang masih kurang. Adapun tujuan penelitian ini yaitu mengetahui pengaruh model pembelajaran Flipped Classroomterhadap kemampuan pemecahan masalah matematis siswa. Jenis penelitian ini adalah penelitian kuantitatif dengan menggunakan metode eksperimen semu (quasi exsperimen design). Penelitian ini di laksanakan di SMK Negeri 1 Gunungsitoli, dengan objek penelitian adalah kelas XI OTKP Tahun Pelajaran 2022/2023. Sampel penelitian diambil secara total sampling, kelas yang yang menjadi objek penelitian adalah kelas XI OTKP-1 sebagai kelas eksperimen, dan kelas OTKP-2 sebagai kelas kontrol. Instrumen yang digunakan dalam penelitian ini adalah tes tertulis dalam bentuk tes uraian dan terdiri dari tes awal dan tes akhir. Hasil penelitian menunjukan bahwa rata-rata nilai tes awal yang diperoleh kelas eksperimen 38,23 (kategori cukup) dan kelas kontrol 43,35 (kategori cukup). Sedangkan rata-rata nilai tes akhir kemampuan pemecahan masalah matematis yang diperoleh kelas eksperimen 78,32 (kategori baik) dan kelas kontrol 57,23 (kategori cukup). Dari hasil penelitian yang diperoleh berdasarkan uji hipotesis, yaitu th =5,825 dan tt= 1, 680. Karena th = 5,825>tt= 1,671, maka tolak H0 terima H1 yang berarti terdapat pengaruh model pembelajaran Flipped Classroom terhadap kemampuan pemecahan masalah matematis siswa.

Analisis Efektifitas Model Pembelajaran Project Based Learning terhadap Minat Belajar Matematis Siswa SMA Negeri 1 Tuhemberua Telaumbanua, Nobuala; Harefa, Amin Otoni; Zega, Yulisman; Lase, Sadiana
Indonesian Research Journal on Education Vol. 4 No. 4 (2024): irje 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/irje.v4i4.1035

Dalam pelaksanaan penelitian ini dilatarbelakangi karena minat belajar matematis siswa masih tergolong rendah, kurangnya keterlibatan siswa selama proses pembelajaran, kurangnya keterampilan berpikir kritis dan kreatif siswa, dan model pembelajaran yang digunakan guru masih konvensional. Tujuan penelitian ini adalah mendeskripsikan efektifitas model pembelajaran Project Based Learning terhadap minat belajar matematis siswa SMA Negeri 1 Tuhemberua. Subjek penelitian adalah siswa kelas X di SMA Negeri 1 Tuhemberua dengan jumlah siswa sebanya 107 orang. Metode penelitian yang digunakan adalah pendekatan kuantitatif dengan jenis penelitian deskriptif. Instrumen penelitian yang digunakan yaitu: (1) Angket minat belajar, dan (2) Lembar observasi efektifitas model pembelajaran Project Based Learning. Topik materi pelajaran yaitu Sistem Persamaan Linear Tiga Variabel. Hasil penelitian: Efektifitas model pembelajaran Project Based Learning dalam proses pembelajaran diperoleh rata-rata persentasenya sebesar 83,18% dengan kriteria baik. Selanjutnya minat belajar matematis siswa dengan menggunakan model pembelajaran Project Based Learning di SMA Negeri 1 Tuhemberua mengalami peningkatan, hasil angket minat belajar siswa sebelum ada tindakan sebesar 53,39% dengan kriteria rendah, dan hasil angket minat belajar siswa setelah ada tindakan menggunakan model pembelajaran Project Based Learning sebesar 86,74% dengan kriteria tinggi.

Co-Authors Abi Rahmad Zalukhu Alfin Putra Idaman Mendrofa Alpian Hulu Amin Otoni Harefa Aristarkhus Hulu Arnis Oktarina Gea Bawamenewi, Arozatulo Bawamenewi, Eniman Benedikta Zega Buulolo, Wining Helsavania Daeli, Veridiana Dalifati Ziliwu Erenu Kharisman Gea Etika Zebua Eunike Zai Ferina Harefa Feroniska Hia Gea, Desri Yanti Gea, Harapan Gea, Kalebi Rahmat Esa Gea, Nopita Giawa, Nurul Ihsani Gulo, Alfa Stephen Notatema Gulo, Devi Ratna Sari Gulo, Irwan Krisman Halawa, Nova Martilina Halawa, Putra Mei Anugrah HALAWA, YUFITA Harefa, Agnes Renostini Harefa, Ahmad Din Helpi Sri Rezeki Zebua Hia, Ester Hulu, Berto Funny Ikhlas Anwar Lahagu Intan Wirna Waruwu Iwan Berkat Zega Joice Erna Lase Jujur Sabdani Harefa Julilian Zebua Kalebi Rahmat Esa Gea Laia, Dimaria Laia, Tiar Nisanna Handayani Laoli, Jaya Saputra Laoli, Jon Wancer Lase, Lisa Desi Mawati Lase, Sadar Riang Lase, Shinta Putri Angraeni Lase, Trisna Wahyu Ningsi Marlinawati Telaumbanua Marwan Putra Laia Mendrofa, Asri Selvi Putri Mendrofa, Ratna Natalia Mendrofa, Versily Murni Hulu, Elvin Syah Nazara, Lilis Pretty Ndruru, Melida NETTI KARIANI MENDOFA Oskah Dakhi Ramaeli Lase SALOME WARUWU Septriani Telaumbanua Seya Setia Zega Sotanius, Tafonao Susi Sabar Menanti Harefa Tafonao Sotanius Telaumbanua, Citra Cahyani Telaumbanua, Kristof Martin Efori Telaumbanua, Nobuala Telaumbanua, Reska Widyanti Telaumbanua, Windi Diantari Telaumbanua, Yakin Niat Waruwu, Lilis Priska Wiljan Analisa Perdamaian Harefa Yakin Niat Telaumbanuad Yosef Darwin Telaumbanua Yulisman Zega ZAI, EDISON Zai, Firman Pikir Zalukhu, Putri Wulandari Zebua, Diani Astuti Zebua, Etika Zebua, Srinuryanti Zebua, Vance Gunawan Zega, Mira Astuti Zega, Pretty Souvenir Zega, Silih Mentari Zendrato, Arikasian Zendrato, Dedy Rahmat Zendrato, Niat Wati

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