World currencies in the global economy: modern role and future trends. Economics and region, [S. l.], n. 3(74), p. 83–88, 2019. DOI: 10.26906/eip.2019.3(74).1768. Disponível em: https://ojs35.nupp.edu.ua/eir/article/view/1768. Acesso em: 23 dec. 2025.