Kafulillah, Devi Safitri, and Septi Budi Sartika. “Concept Understanding Level of Junior High School Students on Substance Pressure Material”. Jurnal Pendidikan dan Pengajaran 56, no. 3 (November 6, 2023): 581–591. Accessed April 4, 2025. https://ejournal.undiksha.ac.id./index.php/JPP/article/view/60396.