BELYK, Diane; SCHUBERT, Jeremy; BAGGALEY, Jon. Classification of DE Delivery Systems. The International Review of Research in Open and Distributed Learning, [S. l.], v. 2, n. 2, 2002. DOI: 10.19173/irrodl.v2i2.42. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/42. Acesso em: 20 apr. 2024.