MARVIRA, Serli; IRYANI, Iryani. Validitas E-modul Berbasis Problem Based Learning pada Materi Kesetimbangan Kimia Fase F Kelas XI. Jurnal Pendidikan Tambusai, [S. l.], v. 8, n. 1, p. 9656–9665, 2024. DOI: 10.31004/jptam.v8i1.13851. Disponível em: http://jptam.org/index.php/jptam/article/view/13851. Acesso em: 9 may. 2025.