CLARK, Kathleen. Self-Directed Learning Network. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 2, n. 1, p. 79–80, 1987. Disponível em: https://ijede.ca/index.php/jde/article/view/565. Acesso em: 3 may. 2024.