Syafrizal, Ade Syahrani Nasution, and Ade Kartika Sari. 2024. “Improving Student Learning Outcomes Through the Problem Based Learning Learning Model at SMP Negeri I Perbaungan”. Jurnal Pendidikan Profesi Guru 2 (2):95-102. https://doi.org/10.22373/jppg.v2i2.6739.