CLARK, G. Christopher. American Center for Distance Education is Inaugurated. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 4, n. 1, p. 73–74, 1989. Disponível em: https://www.ijede.ca/index.php/jde/article/view/364. Acesso em: 28 mar. 2024.