Tualepe OA, Manakane SE, Tetelepta EG. The Effect of Implementing the Problem Based Learning Model on Problem-Solving Skills in Geography Social Studies for 8th Grade Students at SMP Negeri 66, Central Maluku. jpgu [Internet]. 9Oct.2024 [cited 26Apr.2025];3(3):371-8. Available from: https://ojs3.unpatti.ac.id/index.php/jpgu/article/view/15567