SHEA, Peter. Introduction to Section II. Online Learning, Boston, MA, v. 25, n. 3, 2021. DOI: 10.24059/olj.v25i3.2980. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/2980. Acesso em: 25 mar. 2026.