NASCIMENTO CUNHA, M.; CHUCHU, T.; MAZIRIRI, E. T. Threats, Challenges, And Opportunities for Open Universities and Massive Online Open Courses in The Digital Revolution. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 15, n. 12, p. pp. 191–204, 2020. DOI: 10.3991/ijet.v15i12.13435. Disponível em: https://online-journals.org/index.php/i-jet/article/view/13435. Acesso em: 7 feb. 2023.