Ali, Sarmila B., Mursalin Mursalin, and Trisnawaty Junus Buhungo. “Validity of Problem-Based Learning Tools With the Steam Approach to Improve Student Learning Outcomes on Thermodynamics Material”. Jurnal Pijar Mipa 18, no. 5 (September 29, 2023): 743–746. Accessed May 17, 2024. https://jurnalfkip.unram.ac.id/index.php/JPM/article/view/5521.