LOPERA, Sergio Alonso. Social Presence in an Emergency Remote Teaching (ERT) in English during Covid-19. GIST – Education and Learning Research Journal, [S. l.], v. 23, p. 169–182, 2021. DOI: 10.26817/16925777.967. Disponível em: https://latinjournal.org/index.php/gist/article/view/967. Acesso em: 25 apr. 2024.