CUNG, Bianca; XU, Di; EICHHORN, Sarah. Increasing Interpersonal Interactions in an Online Course: Does Increased Instructor E-mail Activity and a Voluntary In-Person Meeting Time Facilitate Student Learning?. Online Learning, Boston, MA, v. 22, n. 3, 2018. DOI: 10.24059/olj.v22i3.1322. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1322. Acesso em: 25 mar. 2026.