Ajisman, Tanjung E, Caniago R. Application of the Problem-Based Learning Model to Improve the Learning Outcomes of Islamic Education Students at SMK 2 Sibolga . jppg [Internet]. 2023 Jul. 31 [cited 2025 Apr. 28];1(2):1-8. Available from: https://journal.ar-raniry.ac.id/ppg/article/view/6694