The art of diplomatic protocol as tool of business communication. Law and innovation society, [S. l.], n. 2 (15), p. 35–39, 2022. DOI: 10.37772/2309-9275-2020-2(15)-6. Disponível em: https://apir.org.ua/index.php/lais/article/view/yefremova_lobko15. Acesso em: 31 jul. 2025.