ZENTGRAF, Maria Christina. The positions of specialists on distance education and on higher education supervision in relation to specialization and upgrading distance education courses. International Journal of E-Learning & Distance Education / Revue internationale du e-learning et la formation à distance, [S. l.], v. 7, n. 3, p. 65–80, 1992. Disponível em: https://ijede.ca/index.php/jde/article/view/505. Acesso em: 23 nov. 2024.