MARTINA, Y. D. Comparative Analysis of the Tax Structures of Bulgaria, Denmark and France. International Journal of Economics and Financial Issues, [S. l.], v. 7, n. 5, p. 25–32, 2017. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/5220. Acesso em: 28 may. 2022.