Rahmawati, A., Kurniawati, D., & Gazali, F. (2026). Implementation of Problem-Based Learning to Enhance Students’ Critical-Thinking Activities in Chemistry Learning: A Classroom Action Research at SMAN 1 Pancung Soal. SEARCH: Science Education Research Journal, 5(1), 108–117. https://doi.org/10.47945/search.v5i1.3281