Murnaka NP, Satria S, Haryanti H, Indira EWM. Problem Based Learning Learning Model for Improving The Mathematical Problem Solving Ability of Grade VIII Students of SMPN 1 Damar. Mathline [Internet]. 2023 Feb. 26 [cited 2025 Mar. 10];8(1):234-45. Available from: https://mathline.unwir.ac.id/index.php/Mathline/article/view/360