HARRY, Keith. Distance Education in Transition: new trends and challenges. The International Review of Research in Open and Distributed Learning, [S. l.], v. 4, n. 2, 2003. DOI: 10.19173/irrodl.v4i2.145. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/145. Acesso em: 28 mar. 2024.