The Effect of the Problem-Based Learning (PBL) Model on Student Learning Outcomes in the IPAS Subject for Fourth-Grade Students at SD Negeri 091262 Karang Sari. Ludi Litterarri [Internet]. 2026 May 19 [cited 2026 May 30];3(1):1-6. Available from: https://ejournal-nawalaedu.com/index.php/JLL/article/view/2662