Sari, Vionita, and Rifda Eliyasni. “Peningkatan Hasil Belajar Peserta Didik Menggunakan Model Problem Based Learning Di Kelas V SD Negeri 14 Luhak Nan Duo Kabupaten Pasaman Barat”. Innovative: Journal Of Social Science Research, vol. 3, no. 3, July 2023, pp. 4691-9, https://j-innovative.org/index.php/Innovative/article/view/2589.