Bhary, F., M. Maswar, M. Atikurrahman, and A. Afandi. “Analysis of the Problem-Based Learning (PBL) Models on Geometry Material in Improving students’ Mathematics Learning Outcomes”. Alifmatika: Jurnal Pendidikan Dan Pembelajaran Matematika, Vol. 5, no. 2, Dec. 2023, pp. 207-25, doi:10.35316/alifmatika.2023.v5i2.207-225.