Setiati, Nunung, and Jumadi Jumadi. “Development of E-Worksheet Problem Based Learning Model on Work and Energy to Improve Students’ Physical Cognitive Abilities in Terms of Mathematical Representations and Verbal Representations”. Jurnal Penelitian Pendidikan IPA 9, no. 1 (January 31, 2023): 93–98. Accessed December 22, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1757.