ŽUBRINIĆ, Krunoslav; KALPIĆ, Damir. The Web as Personal Learning Environment. International Journal of Emerging Technologies in Learning (iJET), [S. l.], v. 3, p. pp. 45–58, 2008. Disponível em: https://online-journals.org/index.php/i-jet/article/view/576. Acesso em: 3 may. 2026.