ANNAND, David. Social presence within the community of inquiry framework. The International Review of Research in Open and Distributed Learning, [S. l.], v. 12, n. 5, p. 40–56, 2011. DOI: 10.19173/irrodl.v12i5.924. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/924. Acesso em: 25 apr. 2024.