Ratu, Ratu Sampurna, Jodion Siburian, and Agus Subagyo. “Implementation of Flipped Classroom Learning Model and Its Effect on Critical Thinking and Communicating Skills of Junior High School Students”. Jurnal Penelitian Pendidikan IPA 11, no. 3 (March 31, 2025): 867–876. Accessed May 26, 2025. https://jppipa.unram.ac.id/index.php/jppipa/article/view/9088.