WHITESIDE, Aimee L. Introducing the Social Presence Model to Explore Online and Blended Learning Experiences. Online Learning, Boston, MA, v. 19, n. 2, 2015. DOI: 10.24059/olj.v19i2.453. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/453. Acesso em: 3 apr. 2026.