Rahmat Pauzi Butarbutar, Anggun Tiur Ida Sinaga, Tumpal Manahara Siahaan. THE INFLUENCE OF THE PROBLEM BASED LEARNING MODEL ON STUDENTS’ LEARNING OUTCOMES IN SOCIAL STUDIES SUBJECT OF GRADE VIII AT STATE JUNIOR HIGH SCHOOL 3 P EMATANGSIANTAR. IJSET [Internet]. 2025 Jul. 28 [cited 2025 Sep. 11];4(7):1841-8. Available from: https://ijset.org/index.php/ijset/article/view/932