Laetisia, Maria. “Meningkatkan Hasil Belajar IPS Melalui Model Pembelajaran Problem Based Instruction Pada Siswa Kelas V Sekolah Dasar”. Indonesian Journal of Instructional Media and Model 1, no. 2 (November 30, 2019): 63–73. Accessed June 22, 2024. http://journal.univetbantara.ac.id/index.php/ijimm/article/view/531.