KRAVTSOV, Hennadiy M.; GNEDKOVA, Olga O. Methods of using cloud services in foreign language training. CTE Workshop Proceedings, Kryvyi Rih, Ukraine, v. 5, p. 54–65, 2018. DOI: 10.55056/cte.135. Disponível em: https://acnsci.org/journal/index.php/cte/article/view/135.. Acesso em: 24 aug. 2026.