THOMPSON, Gordon. The Foundations of Distance Education, Desmond Keegan. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 3, n. 2, p. 133–135, 1988. Disponível em: https://ijede.ca/index.php/jde/article/view/556. Acesso em: 21 nov. 2024.