WLADIS, Claire; CONWAY, Katherine Wladis, c/o Katherine; HACHEY, Alyse C. The Role of Enrollment Choice in Online Education: Course Selection Rationale and Course Difficulty as Factors Affecting Retention. Online Learning, Boston, MA, v. 18, n. 3, 2014. DOI: 10.24059/olj.v18i3.391. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/391. Acesso em: 4 apr. 2026.