Husyain Rifai M. The Effectiveness Of Problem-Based Learning (PBL) And Project-Based Learning (PJBL) Learning Models On Disaster Mitigation Materials On Learning Motivation Of Xi Social Studies Class. IJERSC [Internet]. 2023Oct.31 [cited 2024Nov.7];4(5):923-8. Available from: https://ijersc.org/index.php/go/article/view/727