MAHA, Syahkarina; JASMIDI. Development of E-Modules based on STEM Integrated Problem-Based Learning on Acid-Base Materials. Hydrogen: Jurnal Kependidikan Kimia, [S. l.], v. 14, n. 3, p. 557–568, 2026. DOI: 10.33394/hjkk.v14i3.20758. Disponível em: https://e-journal.undikma.ac.id/index.php/hydrogen/article/view/20758. Acesso em: 8 sep. 2026.