DOWNES, Stephen. Learning Objects: Resources For Distance Education Worldwide. The International Review of Research in Open and Distributed Learning, [S. l.], v. 2, n. 1, 2001. DOI: 10.19173/irrodl.v2i1.32. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/32. Acesso em: 25 apr. 2024.