Safitri, U. ., & Isriani , W. P. . (2026). 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(1), 264–269. https://doi.org/10.61445/tofedu.v5i1.1429