PURBA, Windi Sahayani; KEMBAREN, Agus. Development of Discovery Learning-Based Chemistry Learning E-Modules on Atomic Structure Materials to Improve Learning Outcomes of Class X Students. Hydrogen: Jurnal Kependidikan Kimia, [S. l.], v. 14, n. 4, 2026. DOI: 10.33394/hjkk.v14i4.21885. Disponível em: https://e-journal.undikma.ac.id/index.php/hydrogen/article/view/21885. Acesso em: 8 sep. 2026.