SYAFRIZAL; NASUTION, A. S.; SARI, A. K. Improving Student Learning Outcomes Through the Problem Based Learning Learning Model at SMP Negeri I Perbaungan . Jurnal Pendidikan Profesi Guru, [S. l.], v. 2, n. 2, p. 95–102, 2024. Disponível em: https://journal.ar-raniry.ac.id/ppg/article/view/6739. Acesso em: 23 feb. 2025.