GRAY ECONOMY AND CORRUPTION ASPECTS AS A THREAT TO THE NATIONAL ECONOMIC SECURITY SYSTEM . International Journal of Innovative Technologies in Economy, [S. l.], n. 1(33), 2021. DOI: 10.31435/rsglobal_ijite/30032021/7428. Disponível em: https://rspublisher.org/index.php/ijite/article/view/1883. Acesso em: 17 mar. 2026.