Fattah, Adelifia. “UPAYA PENINGKATAN HASIL BELAJAR PESERTA DIDIK MELALUI IMPLEMENTASI PROBLEM BASED LEARNING”. Global Journal Teaching Professional 2, no. 4 (September 18, 2023): 1202–1210. Accessed June 12, 2026. https://www.jurnal.sainsglobal.com/index.php/gpp/article/view/1146.