PROICHEV, S.; CHEMERYS, H. Analysis of e-mail tools for educational purposes. Ukrainian Journal of Educational Studies and Information Technology, [S. l.], v. 8, n. 1, p. 50–61, 2020. DOI: 10.32919/uesit.2020.01.05. Disponível em: https://uesit.org.ua/index.php/itse/article/view/274. Acesso em: 29 mar. 2024.