Fajarna, Rifa Putri, Susanna, Abdul Hamid, Saminan, Ahmad Farhan, and Nurulwati. 2025. “The Effect of Problem Based Learning Model on Critical Thinking Skills of High School Students on Physics Concepts”. Kasuari: Physics Education Journal (KPEJ) 8 (2):443-53. https://doi.org/10.37891/kpej.v8i2.981.