KUSNADI, Nurrika Febriyanti; SUKMAWATI, Wati. Analysis of Changes in the Level of Difficulty of Elementary School Students in Learning the RADEC Model on the Concept of Energy Transformation Using the Rasch Model . Jurnal Penelitian Pendidikan IPA, [S. l.], v. 9, n. SpecialIssue, p. 1121–1127, 2023. DOI: 10.29303/jppipa.v9iSpecialIssue.4036. Disponível em: https://jppipa.unram.ac.id/index.php/jppipa/article/view/4036. Acesso em: 14 mar. 2025.