Doyan, Aris, Muhammad Matori Rahman, and Sutrio Sutrio. “Development of Student Worksheets Based on a Multi-Representation Approach to Improve Students’ Mastery of Sound Wave Concepts”. Jurnal Penelitian Pendidikan IPA 7, no. SpecialIssue (December 5, 2021): 175–179. Accessed November 23, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1201.