Rukmini P, Setiawardani W, Widiyanti W. THE APPLICATION OF PROBLEM BASED LEARNING (PBL) MODEL TO IMPROVE STUDENTS’ LEARNING OUTCOMES ON SOCIAL STUDIES SUBJECTS IN GRADE IV OF ELEMENTARY SCHOOL II TANJUNGSARI. JRPP [Internet]. 2024 Sep. 6 [cited 2026 May 5];3(2):129-46. Available from: https://transpublika.co.id/ojs/index.php/JRPP/article/view/765