TRAN, Tin Nghi. Readiness, Preparation, and Effectiveness of Online Teaching and Learning in Vietnam Tertiary Education. Proceedings of the AsiaCALL International Conference, [S. l.], v. 621, p. 157–167, 2021. DOI: 10.2991/assehr.k.211224.016. Disponível em: https://asiacall.info/proceedings/index.php/articles/article/view/40. Acesso em: 7 may. 2024.