Risni, Risni, Saulim DT Hutahaean, and Andi Bustan. “Penerapan Model Problem Based Learning (PBL) Pada Materi Pokok Suhu Dan Kalor”. Bahana Pendidikan: Jurnal Pendidikan Sains 3, no. 1 (June 30, 2021): 1–9. Accessed November 14, 2024. https://e-journal.upr.ac.id/index.php/bpjps/article/view/bpjpsv3i1a1.