CHALLIS, Diana. Towards the mature ePortfolio: Some implications for higher education. Canadian Journal of Learning and Technology, [S. l.], v. 31, n. 3, 2005. DOI: 10.21432/T2MS41. Disponível em: https://cjlt.ca/index.php/cjlt/article/view/26488. Acesso em: 23 apr. 2026.