Using a Proportional Approach to Taxation in Ukraine: Problems and Possible Ways of their Solution. Economic journal of Lesya Ukrainka Volyn National University, [S. l.], v. 1, n. 5, p. 85–90, 2016. DOI: 10.29038/2411-4014-2016-01-85-90. Disponível em: https://echas.vnu.edu.ua/index.php/echas/article/view/217.. Acesso em: 18 may. 2024.