LOWENTHAL, Patrick R.; DUNLAP, Joanna C; SNELSON, Chareen. Live Synchronous Web Meetings in Asynchronous Online Courses: Reconceptualizing Virtual Office Hours. Online Learning, Boston, MA, v. 21, n. 4, 2017. DOI: 10.24059/olj.v21i4.1285. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1285. Acesso em: 4 apr. 2026.