Nurmairina, Nurmairina, Mardhatillah Mardhatillah, Hasanah Hasanah, Nila Lestari, and Nurhafni Siregar. “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 5, no. 3 (September 28, 2024): 145-152. Accessed May 1, 2026. https://teunulehjournal.com/index.php/jiteunuleh/article/view/167.