Ramadhany N, Tampa A, Upu H. Systematic Literature Review: The Effectiveness Of Using The Problem-Based Learning Model In Improving Problem-Solving Skills. Mathline [Internet]. 2025 Aug. 12 [cited 2026 Feb. 27];10(3):703-20. Available from: http://mathline.unwir.ac.id/index.php/Mathline/article/view/859