Ekasari, Aprilita, Markus Diantoro, and Parno . “The Ability of Problem-Based Learning (PBL) to Improve Problem-Solving Skills on Heat Topic Among High School Students”. KnE Social Sciences 8, no. 10 (June 5, 2023): 293–299. Accessed July 18, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/13454.