NURMAIRINA, N.; MARDHATILLAH , M. .; HASANAH, H.; LESTARI , N.; SIREGAR, N. Analysis of the Application of the Problem Based Learning Model in Multi-Grade Teaching Courses (PKR) at PGSD UMN Al Washliyah Medan. Jurnal Ilmiah Teunuleh: International Journal of Social Sciences, [S. l.], v. 5, n. 3, p. 145-152, 2024. DOI: 10.51612/teunuleh.v5i3.167. Disponível em: https://teunulehjournal.com/index.php/jiteunuleh/article/view/167. Acesso em: 1 may. 2026.