URBANOVÁ, Klára. Efficiency of Using PowerPoint Presentations in the Teaching of General Chemistry. Scientia in educatione, [S. l.], v. 3, n. 1, p. 29–43, 2020. DOI: 10.14712/18047106.28. Disponível em: https://www.ojs.cuni.cz/scied/article/view/28. Acesso em: 4 jul. 2025.