Theory, Mechanism of Realization and Modern Tendencies. Economic journal of Lesya Ukrainka Volyn National University, [S. l.], v. 1, n. 13, p. 8–16, 2018. DOI: 10.29038/2411-4014-2018-01-8-16. Disponível em: https://echas.vnu.edu.ua/index.php/echas/article/view/103.. Acesso em: 5 may. 2024.