KILLAM, Laura Anne. An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 24, n. 3, 2010. Disponível em: https://www.ijede.ca/index.php/jde/article/view/703. Acesso em: 28 apr. 2024.