ROBERTS, Judy; UMBRIACO, Michel. CADE: Looking Forward By Glancing Back. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 21, n. 3, p. 167–213, 2007. Disponível em: https://www.ijede.ca/index.php/jde/article/view/33. Acesso em: 28 mar. 2024.