OÑA-SIMBAÑA, Johana Maricela. Desafíos de la educación preescolar en tiempos de COVID-19. CienciAmérica, Quito, EC, v. 9, n. 2, p. 138–145, 2020. DOI: 10.33210/ca.v9i2.305. Disponível em: https://cienciamerica.edu.ec/index.php/uti/article/view/305.. Acesso em: 28 oct. 2025.