Public Expenditures Through Public Procurement. European Journal of Engineering and Formal Sciences, [S. l.], v. 2, n. 1, p. 50–64, 2019. DOI: 10.26417/ejef.v2i2.p40-49. Disponível em: https://revistia.com/index.php/ejef/article/view/5061.. Acesso em: 6 may. 2024.