ARBELO, F. Social Presence: An Imperative in Online Learning Contexts. HETS Online Journal, [S. l.], v. 11, n. 1, p. 96-111, 2020. DOI: 10.55420/2693.9193.v11.n1.25. Disponível em: https://hets.org/ojournal/index.php/hoj/article/view/25. Acesso em: 23 sep. 2025.