POZGAJ, Zeljka. Informal Learning in Lifelong Education. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 3, p. pp. 50–53, 2008. DOI: 10.3991/ijet.v3i0.612. Disponível em: https://online-journals.org/index.php/i-jet/article/view/612. Acesso em: 27 apr. 2024.