VIGNARE, Karen; MOSKAL, Patsy. Analytics Research and Case Studies in Online Learning. Online Learning, Boston, MA, v. 20, n. 2, 2016. DOI: 10.24059/olj.v20i2.958. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/958. Acesso em: 25 mar. 2026.