IMPLEMENTASI MODEL PEMBELAJARAN PROBLEM BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN MATEMATIKA DI SDN PASIRKUKUN 03. sindoro [Internet]. 2025 Jul. 12 [cited 2025 Jul. 13];16(11):51-60. Available from: https://ejournal.cahayailmubangsa.institute/index.php/sindoro/article/view/4629