Sumarni, Sumi, Sri Haryati, Eli Trisnowati, Siswanto Siswanto, Moch. Malik Al Firdaus, and Suwito Singgih. “Comparison Analysis of Junior High School Science Textbooks in Indonesia and Singapore View from Nature of Science (NoS) Aspects”. Jurnal Penelitian Pendidikan IPA 8, no. 4 (October 31, 2022): 1707–1713. Accessed November 22, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/1638.