ZINI JR., Álvaro A. . The misleading operating deficit methodology. Brazilian Journal of Political Economy, [S. l.], v. 11, n. 3, p. 418-425, 1991. DOI: 10.1590/0101-31571991-0872. Disponível em: https://centrodeeconomiapolitica.org/repojs/index.php/journal/article/view/1473. Acesso em: 28 apr. 2024.