ПОЛІЩУК, О. С. COLLECTIVE ACTIVITY OF PROFESSIONAL UNIONS IN SOCIAL STRUCTURE OF SOCIETY. Proceedings of the Kyiv Aviation Institute. Series: Philosophy. Cultural, [S. l.], v. 15, n. 1, p. 29–32, 2015. DOI: 10.18372/2412-2157.15.9110. Disponível em: http://jrnl.kai.edu.ua/index.php/VisnikPK/article/view/9110. Acesso em: 13 jun. 2026.