Citra Ratna Napitupulu, Happy Lumbantobing, Ida Mariati Hutabarat, Irfan Wahyudi, Bettisari Napitupulu, Jonner Nainggolan, Ronaldo Kho, Dewi Kristika Findia Ning Tyas, Mayor M. H. Manurung, and Martinus Y. Ruamba. “Comparison of Student Achievement in Teaching Analytic Geometry of Planes and Space Using GeoGebra and PowerPoint Media at STKIP Abdi Wacana in Semester VI of the Academic Year 2021/2022 in Wamena”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 67, no. 2 (February 26, 2023): 9–19. Accessed June 25, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/15434.