ANWAR M. MENINGKATKAN PRESTASI BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING DI SMAN 2 GERUNG. science [Internet]. 2023Mar.27 [cited 2026Jan.25];3(1):27-34. Available from: https://www.jurnalp4i.com/index.php/science/article/view/2045