BRADSHAW, Kathlyn; LOCK, Jennifer; PARCHOMA, Gale. Boundary Crossing between Formal and Informal Learning Opportunities: A Pathway for Advancing e-Learning Sustainability. Canadian Journal of Learning and Technology, [S. l.], v. 46, n. 3, 2021. DOI: 10.21432/cjlt28116. Disponível em: https://cjlt.ca/index.php/cjlt/article/view/28116. Acesso em: 3 apr. 2026.