Hutagalung, D., Alhapsi and Batubara, E. (2024) “Implementation of Problem-Based Learning Method in Educational Learning to Improve Learning Outcomes at SD Negeri 081234 Sibolga”, Jurnal Pendidikan Profesi Guru, 2(2), pp. 57–63. Available at: https://journal.ar-raniry.ac.id/ppg/article/view/6680 (Accessed: 23 February 2025).