Faiqoh RN, Sukmanasa E. Implementation of Problem Based Learning Model to Improve Critical Thinking Skills in Grade VI Students of SD Negeri Sukowiryo 01. JITeunuleh [Internet]. 2026Jun.13 [cited 2026Jun.14];7(2):239-47. Available from: https://teunulehjournal.com/index.php/jiteunuleh/article/view/230