Syafrizal, Nasution, A. S., & Sari, A. K. (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. Retrieved from https://journal.ar-raniry.ac.id/ppg/article/view/6739