ZORMANOVÁ, Lucie. Models of Distance Learning in Higher Education. International Journal of Research in E-learning, [S. l.], v. 3, n. 1, p. 49–61, 2017. Disponível em: https://trrest.vot.pl/ojsus/index.php/IJREL/article/view/8394. Acesso em: 7 may. 2025.