WAVLE, Sharon; OZOGUL, Gamze. Investigating the Impact of Online Classes on Undergraduate Degree Completion. Online Learning, Boston, MA, v. 23, n. 4, 2019. DOI: 10.24059/olj.v23i4.1558. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1558. Acesso em: 4 apr. 2026.