Teaching improvement from online learning (E-Learning). Conceptions and challenges before the pandemic situation. COLOMBIAN JOURNAL OF ADVANCED TECHNOLOGIES, [S. l.], v. 3, n. 2, p. 113–121, 2020. DOI: 10.24054/rcta.v3iEspecial.875. Disponível em: https://ojs.unipamplona.edu.co/index.php/rcta/article/view/875. Acesso em: 25 nov. 2025.