Sumarja, Kinanti Sumarja. “PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA SEKOLAH DASAR”. Global Journal Teaching Professional 2, no. 4 (September 13, 2023): 1038–1046. Accessed May 9, 2026. https://jurnal.sainsglobal.com/index.php/gpp/article/view/928.