Safitri D, Priyono Tri Febrianto. THE EFFECT OF PROBLEM-BASED LEARNING ON STUDENTS’ CRITICAL THINKING SKILLS IN IPAS LEARNING ON CURRENCY VALUE TOPIC. SJIIPS [Internet]. 2026 May 24 [cited 2026 May 26];15(2):973-82. Available from: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/7967