Dewi, Mega Syilvia, Dyan Yuliana, and Zainul Munawwir. “Pengaruh Model Pembelajaran Problem Based Learning Terhadap Aktivitas Belajar Siswa”. Jurnal Pendidikan Tambusai 5, no. 3 (October 6, 2021): 6513–6520. Accessed July 3, 2024. https://jptam.org/index.php/jptam/article/view/1974.