KUČÍRKOVÁ, L.; VOGELTANZOVÁ, T.; JARKOVSKÁ, M. BUSINESS ENGLISH COURSES ONLINE SUPPORT. Journal on Efficiency and Responsibility in Education and Science, [S. l.], v. 4, n. 4, p. 197-206, 2011. Disponível em: https://www.eriesjournal.com/index.php/eries/article/view/47. Acesso em: 7 mar. 2021.