Implementation of The Problem-Based Learning Model to Improve Critical Thinking Skills of Grade X Students in Pancasila Educationat MA Ma’arif NU Kota Blitar. JOSAR [Internet]. 2026 Sep. 30 [cited 2026 Oct. 8];11(2):384-9. Available from: https://ejournal.unisbablitar.ac.id/index.php/josar/article/view/5963