THE EFFECT OF PROBLEM BASED LEARNING MODELS ON STUDENTS’ CRITICAL THINKING SKILL IN GEOGRAPHY CLASS XI IPS SMAN 1 PRINGSEWU. JLG [Internet]. 2025 Oct. 17 [cited 2025 Oct. 20];4(1):8-17. Available from: https://jpips.fkip.unila.ac.id/index.php/jlg/article/view/11