Gusman, H.B., Rachmawati, R.C., Ulfah, M. and Priyatna, R.E. 2023. The effectiveness of Problem-Based Learning (PBL) model in increasing students’ cognitive outcomes and learning motivation in Environmental Change Material. Jurnal Mangifera Edu. 8, 1 (Aug. 2023), 32-39. DOI:https://doi.org/10.31943/mangiferaedu.v8i1.172.