“THE EFFECT OF PBL LEARNING MODEL ON THE FIFTH-GRADE STUDENTS’ MATH ARITHMETICAL SKILLS AT MIS PERDAMEAN SIGAMBAL”. Primary: Jurnal Pendidikan Guru Sekolah Dasar 12, no. 2 (April 25, 2023): 293–305. Accessed February 5, 2026. https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/286.