Kurniadi, Mei, Supriyono Koes Handayanto, and Sutopo Sutopo. “The Effect of Virtual Blended Learning Models With PhET Assistance on Students’ Mastery of Concepts in Fluid Material”. Jurnal Penelitian Pendidikan IPA 9, no. 3 (March 31, 2023): 1530–1534. Accessed May 20, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/3540.