MORGAN, Tannis. Online Teaching in International Contexts: Towards a sociocultural perspective of teaching presence. The International Review of Research in Open and Distributed Learning, [S. l.], v. 9, n. 2, 2008. DOI: 10.19173/irrodl.v9i2.571. Disponível em: https://www.irrodl.org/index.php/irrodl/article/view/571. Acesso em: 19 apr. 2024.