1.
Siagian Q, Darhim D, Juandi D, Khairunnisa K. The Effect of Problem-Based Learning (PBL) on Improving Students’ Mathematical Ability: Meta-Analysis. cendekia [Internet]. 7Aug.2023 [cited 16Apr.2026];7(3):2252-64. Available from: https://j-cup.org/index.php/cendekia/article/view/2166