S. Safrina and S. Saminan, “THE EFFECT OF MODEL PROBLEM BASED LEARNING (PBL): (Case Study at Class VIII MTsN Meureudu)”, jip, vol. 3, no. 2, pp. 311–322, May 2015, Accessed: Feb. 02, 2026. [Online]. Available: https://journal.scadindependent.org/index.php/jipeuradeun/article/view/69