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PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION BERBASIS MEDIA AUDIO VISUAL TERHADAP HASIL BELAJAR SISWA PADA PEMBELAJARAN IPAS KELAS IV SD RK SANTA MARIA PAKKAT Sudiro Alexander Xaverius Simamora; Patri Janson Silaban; Juliana; Regina Sipayung; Antonius Remigius Abi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 04 (2024): Volume 09, Nomor 04, Desember 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i04.19770

Abstract

The research applies a group investigation type cooperative learning model based on audio video media. The group investigation type cooperative learning model is a learning model that emphasizes complex student choice and control with group division that requires students to use high student thinking skills by considering close friendships or shared interests in certain topics. The aim is to determine the effect of the group investigation type cooperative learning model based on audio-vidual media on student learning outcomes in class IV science and science subjects at SD RK Santa Maria Pakkat for the 2023/2024 academic year. The research method used is an experimental method with a quantitative research type. To obtain the data required a test instrument of 25 questions. The total research sample was 30 students based on the saturated sampling technique. To determine students' initial abilities, the research conducted a pretest with an average score of 55,73 which was in the poor category. The results of the Posttest have improved from the Pretest results given previously with the students' average score reaching 86,26 in the very good category. It can be said that the level of success in student learning outcomes has increased as evidenced by the results of the correlation coefficient test calculation, the results obtained were r_count ≥ r_tabel with results of 0,805 ≥ 0,361. Next, hypothesis testing is comparing the t_count≥ t_table values. The obtained value of t_count = 7,192 while t_table = 2,042. Because t_count ≤ t_table (7,192 ≥ 2,042) then H_a is accepted and H_o is rejected. Through the t-test, it can be concluded that there is a significant positive influence between the group investigation type cooperative learning model based on audio video media on student learning outcomes.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE JIGSAW BERBASIS MEDIA ALAT PERAGA TERHADAP HASIL BELAJAR SISWA PADA PELAJARAN MATEMATIKA DI KELAS V SD NEGERI 064022 MEDAN TUNTUNGAN Elisabeth Siallagan; Patri Janson Silaban; Frida Simorangkir; Regina Sipayung; Juliana
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 04 (2024): Volume 09, Nomor 04, Desember 2024
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i04.19773

Abstract

This research aims to determine the effect of the Jigsaw Type Cooperative model based on teaching aids on student learning outcomes in mathematics lessons in class V of SD Negeri 064022 Medan Tuntungan for the 2023/2024 academic year. This type of research is quantitative using experimental methods. The population of this study was class V students at SD Negeri 064022 Medan Tuntungan, totaling 29 students. Sampling was taken using a saturated sampling technique and was obtained from class V, totaling 29 students. The results of this research show that student learning outcomes are in the very good category with an average of 87.76. The results of this research show that the correlation test results can be seen that the correlation coefficient is 0.831, meaning rcount (0.831) ≥ rtable (0.367), so hₐ is accepted. So there is a very strong influence between the Jigsaw Type Cooperative model based on teaching aids on student learning outcomes in class V mathematics lessons at SD Negeri 064022 Medan Tuntungan. It can also be seen from the t-test where tcount ≥ ttable, namely 7.774 ≥ 1.699, thus stating that hₐ is accepted. This shows that there is a significant positive influence from the use of the Jigsaw Type Cooperative model based on teaching aids on student learning outcomes in mathematics lessons in class V of SD Negeri 064022 Medan Tuntungan for the 2023/2024 academic year.
PENGARUH MODEL PEMBELAJARAN TAKE AND GIVE TERHADAP HASIL BELAJAR SISWA PADA TEMA 8 DAERAH TEMPAT TINGGALKU PADA SISWA KELAS IV SD N 060919 SUNGGAL Sola Grasia Purba; Juliana; Patri Janson Silaban; Regina Sipayung; Antonius Remigius Abi
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 01 (2025): Volume 10, Nomor 01 Maret 2025 in progress
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i01.22280

Abstract

This study aims to determine (1) To determine the process of implementing the take and give learning model in class IV of SD N 060919 Sunggal in the 2024/2025 academic year in the learning activities of fictional stories and forces on objects (2) To determine the learning outcomes of students in the learning activities of fictional stories and forces on objects using the take and give model in class IV of SD N 060919 in the learning activities of fictional stories and forces on objects (3) To determine the effect of the take and give model on the learning outcomes of students in the take and give learning activities in class IV of SD N 060919 Sunggal in the 2024/2025 academic year. The instruments used in this study consisted of questionnaires and test instruments. The population of this study was all class IV of SD N 060919 Sunggal and had 30 students. There is an influence of the take and give learning model on the learning outcomes of students in my residential area with the material of fictional stories and forces on objects in grade IV. It can be seen from the average value of the student's pretest of 62.67 and the average value of the student's posttest of 76.44. Based on the results of the hypothesis test (t-test) with a value of t_count ≥ t_table, namely 6.279 ≥ 2.048 at a significance level of 0.000 0.05. The data can show that Ha is accepted, namely there is an influence between the take and give learning model assisted by song media (X) on student learning outcomes (Y).
PENGARUH MODEL PEMBELAJARAN PROJECT BASED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN IPAS KELAS V DI UPT SD NEGERI 081 HUTASOIT II Tamba, Nurlela; Darinda Sofia Tanjung; Patri Janson Silaban; Regina Sipayung; Juliana
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.28065

Abstract

This study aims to determine the effect of the Project Based Learning learning model on student learning outcomes in the subject of science on the material "Properties of Light" of grade V at UPT SD Negeri 081 Hutasoit II in the academic year of 2024/2025. The study used an experimental method with a quantitative approach, and involved 25 students as the total sample. The instruments used were questionnaires and multiple-choice tests.The results showed an average pretest score of 61.40 and a posttest of 78.90, with an average questionnaire score of 74.20. The correlation coefficient test showed a value of 0.968 ≥ 0.396 (r count ≥ r table), and the t-test showed t count ≥ t table (18.584 ≥ 2,069), which means Ha is accepted. Thus, there is a positive and significant influence of the Project Based Learning model on student learning outcomes.
PENGARUH MODEL PEMBELAJARAN CHILDREN LEARNING IN SCIENCE (CLIS) TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN IPAS KELAS IV SD NEGERI 048472 KUTAMBELIN Lovriyanti, Triani; Darinda Sofia Tanjung; Eka Kartika Silalahi; Regina Sipayung; Irmina Pinem; Patri Janson Silaban
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.28078

Abstract

This study aims to examine the effect of the Children Learning In Science (CLIS) learning model on student learning outcomes in the IPAS subject "Magnet: A Mysterious Object" in Grade IV at SD Negeri 048472 Kutambelin for the 2024/2025 academic year. The research employed a quantitative experimental method with a total sample of 30 students. The independent variable was the CLIS learning model, while the dependent variable was student learning outcomes. Data were collected using questionnaires and multiple-choice tests. The average pre-test score was 37.66, increasing to 79.33 in the post-test, while the questionnaire yielded an average score of 75.43. The correlation coefficient was 0.827 (rcalculated ≥ rtable), and the t-test result was 7,796 (tcalculated ≥ ttable), indicating a significant positive effect of the CLIS model on student learning outcomes.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM GAMES TOURNAMENT TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN IPAS DI KELAS V UPT SD NEGERI 060937 MEDAN JOHOR Br Sitepu, Harty Erima; Regina Sipayung; Irmina Pinem; Darinda Sofia Tanjung; Patri Janson Silaban
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.28500

Abstract

This research aims to determine the effect of the Team Games Tournament type cooperative learning model on improving student learning outcomes in the subject of IPAS with the material of national cultural diversity in the 5th grade of UPT SD Negeri 060937 Medan Johor, Academic Year 2024/2025. The independent variable in this study is the Team Games Tournament type cooperative learning model (X) and the dependent variable is Student Learning Outcomes (Y). In this study, the research method used is quantitative and the research design is a Pre-Experiment specifically One Group Pretest Posttest Design. The sample for this research consists of 30 students from the 5th grade of UPT SD Negeri 060937 Medan Johor. The sampling method used in this research is Total Sampling. The research instrument consisted of a questionnaire and a multiple-choice test instrument. The learning outcomes of the students showed an average pretest score of 57.33 while the average posttest score was 82.80, and for the student questionnaire, the average score was 78.43. The level of success in student learning outcomes increased as evidenced by the correlation test result of 0.432, which means rcount ≥ rtabel, namely 0.432 ≥ 0.361. Furthermore, the hypothesis test (t-test) shows that tcount ≥ ttabel, namely 2.537 ≥ 1.697, Therefore, it can be stated that Ha is accepted. This indicates that there is a significant positive influence from the cooperative learning model of the Team Games Tournament type on learning outcomes in the subject of IPAS in class V UPT SD Negeri 060937 Medan Johor for the 2024/2025 academic year.
PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE TERHADAP HASIL BELAJAR MATEMATIKASISWA KELAS V DI SD NEGERI 060903 MEDAN HELVETIA Siregar, Hartaty Anna; Regina Sipayung; Irmina Pinem; Darinda Sofia Tanjung; Eka Margaretha Sinaga; Patri Janson Silaban
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.28509

Abstract

This study aims to determine the effect of the Think Pair Share learning model on the mathematics learning outcomes of fifth-grade students at SD 060903 Medan Helvetia in the 2024/2025 academic year. The research method used is a quantitative approach with a One Group Pretest-Posttest experimental design. The research subjects were all 32 students in the fifth grade. Data collection was conducted through tests that had been validated for reliability and validity. The pretest results showed an average score of 50.31, categorized as needing improvement, while the posttest results increased to 76.09, categorized as progressing. The Pearson correlation test showed a calculated coefficient value of r = 0.777 ≥ r table = 0.349, indicating a strong correlation, with a significance level of 0.001. This means there is a very strong positive relationship between the application of the Think Pair Share model and students’ mathematics learning outcomes. Furthermore, the hypothesis test using the t-test yielded a value of t = 6.760 ≥ t table = 1.697, indicating a significant influence of the Think Pair Share cooperative learning model on students' mathematics learning outcomes.
PENGARUH MODEL PEMBELAJARAN QUANTUM TEACHING TERHADAP HASIL BELAJAR SISWA PADA MATA PELAJARAN IPAS KELAS V SD NEGERI 106836 LIMAU MANIS Marbun, Dinda Natalia Br; Asnita Hasibuan; Heka Maya Sari Sembiring; Regina Sipayung; Patri Janson Silaban
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 03 (2025): Volume 10 No. 03 September 2025
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i03.32382

Abstract

This study aims to determine the effect of the Quantum Teaching learning model on student learning outcomes in the subject of Science in grade V of Elementary School 106836 Limau Manis. This type of research is quantitative research using experimental methods. The type of sample used is purposive sampling. The research sample used was 34 students of class VB. To determine the initial abilities of students, researchers conducted a Pre-Test with an average value of 53.67 which is included in the less category. The results of the Post-Test have an increase from the results of the Pre-Test with an average value of 84.52 with a very good category. Based on the results of the study, it shows that there is an influence of the Quantum Teaching learning model on the learning outcomes of class VB students of Elementary School 106836 Limau Manis. The results of this study indicate that the results of the correlation test can be seen in the correlation coefficient value of 0.623, meaning that r hitung (0.623) > r tabel (0.396) means Ha is accepted. Sothere is a strong influence between the Quantum Teaching learning model on student learning outcomes. It can also be seen from the results of the t-test where t hitung > t tabel, namely 4.510 > 1.690, thus stating that Ha is accepted. This shows a significant positive influence of the use of the Quantum Teaching learning model on learning outcomes in the subject of science for grade V at SD Negeri 106836 Limau Manis in the 2024/2025 academic year.
Pengaruh Minat Baca Terhadap Hasil Belajar Bahasa Indonesia Peserta Didik Kelas IV SD Negeri 107967 Pelintahan Hasibuan, Ampuan Lidyawati; Sipayung, Regina; Tanjung, Darinda Sofia; Lumbanraja, Bogor; Juliana
Jurnal Mutiara Pendidikan Indonesia Vol 8 No 1 (2023): Jurnal Mutiara Pendidikan Indonesia
Publisher : Fakultas Ilmu Pendidikan Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/mutiarapendidik.v8i1.3973

Abstract

Penelitian ini bermaksud untuk mengetahui pengaruh minat membaca terhadap hasil belajar peserta didik mata pelajaran Bahasa Indonesia IV SD Negeri 107967 Pelintahan. Metode yang dipakai dalam penelitian merupakan metode survey.Teknik pengambilan sampel memakai purposive sampel dan sampel yang digunakan adalah kelas IV yang berjumlah 30 peserta didik. Berdasarkan hasil temuan, minat membaca mendapat persentase 67% pada kategori sedang, sedangkan hasil belajar mendapat persentase 63 % pada kategori sedang. Dari uji korelasi sebesa 0,831 diman rhitung (0,831) ≥ rtabel (0,361) artinya minat membaca memili pengarah yang sangat kuat pada hasil belajar. Berdasarkan hasil penelitian uji-t, dimana thitung ≥ ttabel ialah 7,912 ≥ 2,048, dapat dinyatakan Ha diterima. Kesimpulanya yaitu ada pengaruh positif serta signifikan dari minat membaca terhadap hasil belajar peserta didik kelas IV SD Negeri 107967 Pelintahan tahun pembelajaran 2022/2023.
Pengaruh Pengelolaan Kelas Terhadap Keaktifan Belajar Peserta Didik Kelas IV SD Negeri 068006 Simalingkar Sihite, Satrina; Sipayung, Regina; Tanjung, Darinda Sofia; Lumbanraja, Bogor; Sitepu, Anton
Jurnal Mutiara Pendidikan Indonesia Vol 8 No 1 (2023): Jurnal Mutiara Pendidikan Indonesia
Publisher : Fakultas Ilmu Pendidikan Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/mutiarapendidik.v8i1.3974

Abstract

Penelitian ini bermaksud untuk mengetahui pengaruh pengelolaan kelas terhadap keaktifan belajar peserta didik kelas IV SD N 068006 Simalingkar Tahun Pembelajaran 2022/2023. Metode yang dipakai dalam penelitian ini ialah metode expost facto, populasi dari penelitian ini keseluruhan peserta didik dengan jumlah 181 yang terbagi dalam 6 ruangan.  Sampel dalam penelitian ini memakai purposive sampel dan yang dipilih ialah peserta didik kelas IV dengan jumlah 30 peserta didik. Hasil penelitian ini menunjukkan pengelolaan kelas di kelas IV SD Negeri 068006 Simalingkar tergolong dalam tingkat sedang pada persentase 70% dankeaktifan belajar peserta didik juga berada pada tingkat sedang pada persentase 67 %. Dari hasil uji korelasi sebesar 0.612 yang artinya rhitung (0.612) ≥ rtabel (0.361) maka Ha diterima. Maka terdapat pengaruh yang kuat antara pengelolaan kelas terhadap kekatifan belajar peserta didik. Dari hasil penelitian uji-T dimana thitung ≥ ttabel yaitu 4,098 ≥ 2,048 maka dapat dinyatakan bahwa Ha diterima. Hal ini menunjukkan bahwa adanya pengaruh positif dan signiifikan dari pengelolaan kelas terhadap kekatifan belajar peserta didik kelas IV SD N 068006 Simalingkar tahun pembelajaran 2022/2023.
Co-Authors Abdi Karya Angelus Kacaribu Abi, Antonius Remigius Abigail, Martina Agnes Romayani Simarmata Aldy Revildo Girsang Aliyah Rumini Larasati Anastasya Apriliaty Simamora Anastasya Gesya Situmorang Anastasya Simamora Angela Mericci Alpa Manurung Angelina Rajagukguk, Nadia Anton Sitepu Antonius Religius Abi Antonius Remigius Abi Aprida Laoli Ardyansyah Ardyansyah Asnita Hasibuan Awen Simanullang Bagus Subambang Barus, Aquilla Diani Br Barus, Laura Barus, Perbinanda Br Berutu, Ira Berutu, Ira Seviana Berutu, Sahira Betty Agatha Sihombing Betty Agatha Sihombing Bina Limbong Bogor Lumbanraja Boyan Sinaga Br Sitepu, Harty Erima Brahmana, Emia Latersia S Chrisbiantoro Gultom Daeli, Anaria Damanik, Jenemy Amelya Darinda Sofia Tanjung Darwita Manalu Debora Panjaitan Deliwarni Sinaga Devi Efa Naibaho Dewi Anzelina Dewi Anzelina Din Oloan Sihotang Dyan Wulan Sari Hs Eka Kartika Silalahi Eka Margareta Sinaga Elisabeth Siallagan Elisabeth Sihombing Ella Sharifa Tamba Ervina Gultom Ester Julinda Simarmata, Ester Julinda Ester Simarmata Fadhillah Rahma Purba Fatmawati M Yusuf Fiona Br Ginting, Trysia Florentina, Nova Frida Simorangkir Gabrielli Ambarita Gaol, Rumiris Lumban Gapana Sembiring, Firenta Gilberdh Saragih Ginting, Fiber Yun Almanda Ginting, Helmi Br Ginting, Marsela Ginting, Trysia Fiona Br Gloria Sarah Laurensi Tampubolon Gultom, Meliana Gurusinga, Elfa Yolanda Br Hanna Cintia Damanik Hartati Anna Siregar Hasibuan, Ampuan Lidyawati Heka Maya Sari Sembiring Henceyana Saragih Herna Elisabeth Lumbanbatu Hulu, Anna Natinaria Hutajulu, Yohani Hutapea, Novita Sari Indah Karuniati Laila Intan Y Bintang Irmina Pinem Iwan Sunarya Panjaitan Joen Purba Johannes Sohirimon Lumban Batu Jontono Samosir Juliana Juliana Juliana Juliana Kesia Simatupang, Ruth Ketaren, Angella Kisno Kisno Kurnia Devi Saragih Larasati, Aliyah Rumini Lastri Helmalia Sitohang Litani Fivetrin Siregar Loripa Hutasoit Lovriyanti, Triani Lumban Batu, Johannes Sohirimon Lumbanraja, Anita Lumbanraja, Bogol Manalu, Madianti Manalu, Regina Kristin Marbun, Dinda Natalia Br Margareth, Silvia Margaretha Ayu Lumban Gaol Margaretha Ayu Lumban Gaol Maria Amelia Sitanggang Maria Lady Agustina Nainggolan Marissa Sibuea, Devi Martina Olypia Kaban Martina Siahaan Marwiyah Marwiyah Marziah Marziah Masli Tamba Masli Tamba Mawati, Maria Sri Mega Rosa S Purba MEIKARDO SAMUEL PRAYUDA Meta Leonarda Sitanggang Meysi Damayanti Mitra Wati Ndruru Muliana Muliana Murdiono Lumban Gaol Nahor, Alika Banjar Nainggolan, Nina Nurhaini Natalia Ginting Nirmalawati Nirmalawati Nova Florentina Ambarwati Nove Riski Manik Novia Banjarnahor Nurhayati Simanullang, Damaris Padang, Rosdiana Pandia, Pasya Pangaribuan, Jontra Jusat Panjaitan, Hana Florida Panjaitan, Hanna Panjaitan, Wilda Agnesia Pardosi, Selma Roulina Pasaribu, Dicky F Pianda, Lide Dudura Pinem, Irmina Priskila Rosdiana Sipayung Purba, Leiressa Afriani Purba, Resi Arnika Rahman Sihotang Raja, Bogor Lumban Rajesh, Viji Raudhatun Najmi Redina Sinaga Reflina Sinaga Regina Kristin Manalu Remigius Abi, Antonius Ria Rasani Tumangger Ribka Kariani Br Sembiring Ribka Sihaloho Rina Ningsih Pardosi Rina Wati Lumban Gaol Risma Erawati Purba Risnawaty Nadeak Rudolf Simamora Rumiris Lumbangaol Sagala, Eva Lasmawarni Sahira Berutu Samosir, Kristina Santa Stevani Gulo Sara Theresia Sari Meliana Sitanggang Sarinia Harefa Saurma Sihombing Saut Mahulae Sekali, Yona Nureka Br Karo Sembiring, Firenta Gapana Sembiring, Ribka Kariani Siburian, Enzel Ulina Sidabutar, Stevanny Amanda Sidauruk, Rachel Monica Sihite, Satrina Sihombing, Imelda Sihombing, Suster Margaretta Sihotang, Rapmanarihon Sihotang, Sari Artha Silaban, Patri Silvia Anggreni Br Surbakti Silvia Margareth Simanullang, Dina Oktaviana Veronika Simanungkalit, Aprianti Simatupang, Ruth Kesia Simbolon, Rimma Iya Sinuraya, Delviana Br Sinuraya, Septeti Sinuraya, Septeti Angges Br Sirait, Inggrid Sirait, Rifka Siregar, Andrian Valentino Siregar, Hartaty Anna Siregar, Litani Sirileleu, Cindy Yovita Br Siska Evelina Br Depari Siska Ginting Sitanggang, Paskah Afriani Sitohang, Juita Sitompul, Nursani Gracia Sitorus, Tania Situmeang, Junita Stevania Situmorang, Anastasya Gesya Situmorang, Kresentia Kamilia Sola Grasia Purba Srinanci Pardosi Stepi Agustina Sirait Sudiro Alexander Xaverius Simamora Sukli Sinaga Tamba, Nurlela Tambunan, Mullop Tambunan, Yesa Tarigan, Egita Tarigan, Verawati Br Tarihoran, Wilson Valentino Tesa Agresya Tambunan Tiodora Br Tarigan Valentina Purba Vinona, Gracia Wendy Albert Saragih Wilda Agnesia Panjaitan Wilda Agnesia Panjaitan Yolanda Sewi Yunarti Lusia Yusni Atriana Girsang