Safitri, Ulandari, and Weni Putri Isriani. “The Effect of the Problem-Based Learning (PBL) Model on the Learning Outcomes of IPAS in Fifth Grade Students at SDN 20 Sintuk and SDN 15 Ampalu, North Pariaman District”. TOFEDU: The Future of Education Journal 5, no. 1 (January 21, 2026): 264–269. Accessed February 4, 2026. https://journal.tofedu.or.id/index.php/journal/article/view/1429.