Juwairiyah, Juwairiyah, and Moch Haikal. 2025. “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”. PAIDAGOGIA: Jurnal Inovasi Pendidikan Dan Pembelajaran 2 (1):12-19. https://doi.org/10.63757/pjipp.v2i1.50.