KIRBY, David; BOAK, Cathryn. Investigating Instructional Approaches in Audio-Teleconferencing Classes. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 4, n. 1, p. 5–19, 1989. Disponível em: https://ijede.ca/index.php/jde/article/view/353. Acesso em: 29 apr. 2024.