UBELL, Robert N. STEVENS INSTITUTE OF TECHNOLOGY: WEBCAMPUS. Online Learning, Boston, MA, v. 8, n. 3, 2019. DOI: 10.24059/olj.v8i3.1815. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1815. Acesso em: 25 mar. 2026.