“EFFECT OF THE PROBLEM BASED LEARNING (PBL) MODEL ON THE STUDENT CRITICAL THINKING SKILL ON EXCRETORY SYSTEM MATERIAL IN CLASS XI SMA NEGERI 1 DOLOK PANRIBUAN ACADEMIC YEAR 2023/2024” (2025) Jurnal Pelita Pendidikan, 13(4), pp. 218–223. doi:10.24114/jpp.v13i4.71591.