Description of Student Chemistry Learning Difficulties in Acid Base Material Class XI IPA at SMAN 7 Padang. Entalpi Pendidikan Kimia, [S. l.], v. 3, n. 3, p. 18–26, 2022. DOI: 10.24036/epk.v3i3.273. Disponível em: http://entalpipendidikan.ppj.unp.ac.id/index.php/epk/article/view/273. Acesso em: 24 oct. 2026.