Baharuddin, Wilda. “Penerapan Model Pembelajaran Problem Based Learning Untuk Meningkatkan Hasil Belajar IPAS Siswa Sekolah Dasar”. Global Journal Teaching Professional 2, no. 4 (September 13, 2023): 1681–1694. Accessed June 12, 2026. https://www.jurnal.sainsglobal.com/index.php/gpp/article/view/897.