HIGGINS, Andrew. Winds of change and paradigm shifts: Correspondence, distance and open learning. Journal of Open, Flexible and Distance Learning, [S. l.], v. 4, n. 1, p. 23–29, 2023. Disponível em: https://jofdl.nz/index.php/JOFDL/article/view/159. Acesso em: 25 apr. 2026.