Intan Permata Sari, and Achmad Fathoni. “Problem Based Learning Model Assisted by Renderforest Video Animation on Mathematics Learning Outcomes”. International Journal of Elementary Education 6, no. 4 (December 28, 2022): 648–656. Accessed May 9, 2024. https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/56304.