The Effect of The Problem-Based Learning (PBL) Learning Model on Critical Thinking Skills on Plane Figures at SD Muhammadiyah 1 Babat. tematik [Internet]. 2025 Aug. 22 [cited 2026 Mar. 15];14(1):9-16. Available from: https://jurnal.unimed.ac.id/2012/index.php/tematik/article/view/68121