“Improving Mathematics Learning Outcomes Using the Problem-Based Learning Model for Class V Students of UPTD SDN 192 BARRU”. JISIP (Jurnal Ilmu Sosial dan Pendidikan) 9, no. 1 (January 16, 2025): 355–366. Accessed August 15, 2026. https://ejournal.mandalanursa.org/index.php/JISIP/article/view/8208.