BORYSOVA, Z.; BORYSOVA, V. SPEECH ETIQUETTE FORMULAS IN UKRAINIAN BUSINESS COMMUNICATION: PERSPECTIVES OF FOREIGN LEARNERS. Sworld-Us Conference proceedings, [S. l.], v. 1, n. usc31-00, p. 143–146, 2025. DOI: 10.30888/2709-2267.2025-31-00-008. Disponível em: https://proconference.org/index.php/usc/article/view/usc31-00-008. Acesso em: 9 sep. 2025.