RICHARDS, Griff. Editorial: The Challenges of the Learning Object Paradigm. Canadian Journal of Learning and Technology, [S. l.], v. 28, n. 3, 2002. DOI: 10.21432/T2WW35. Disponível em: https://cjlt.ca/index.php/cjlt/article/view/26571. Acesso em: 6 apr. 2026.