BROCKERHOFF-MACDONALD, Bettina. Distance Learning in Higher Education. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 23, n. 2, p. 161–162, 2009. Disponível em: https://www.ijede.ca/index.php/jde/article/view/585. Acesso em: 24 apr. 2024.