Juwairiyah J, Haikal M. The Effect of the Problem-Based Learning (PBL) Instructional Model on the Cognitive Learning Outcomes of Grade X Students at MA Miftahul Ulum Bettet on the Topic of Environmental Pollution. J. Inov. Pendidik. Pemb. [Internet]. 2025 Jun. 30 [cited 2026 May 13];2(1):12-9. Available from: https://paidagogia.lombokinstitute.com/index.php/JIPP/article/view/50