СКИБА, І. П. KNOWLEDGE AS AN INSTRUMENT OF HUMAN ACTIVITY. Proceedings of the Kyiv Aviation Institute. Series: Philosophy. Cultural, [S. l.], v. 14, n. 2, p. 93–97, 2015. DOI: 10.18372/2412-2157.14.8777. Disponível em: http://jrnl.kai.edu.ua/index.php/VisnikPK/article/view/8777. Acesso em: 14 jun. 2026.