KEHRWALD, Benjamin. Social Presence and Online Communication: A response to Mersham. Journal of Open, Flexible and Distance Learning, [S. l.], v. 14, n. 1, p. 29–46, 2011. Disponível em: https://jofdl.nz/index.php/JOFDL/article/view/28. Acesso em: 10 dec. 2024.