SCALES, R. W. Open and Flexible Learning Centres. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 6, n. 2, p. 87–88, 1991. Disponível em: https://ijede.ca/index.php/jde/article/view/409. Acesso em: 21 nov. 2024.