BUSZKO, Andrzej; SKORWIDER-NAMIOTKO, Jarosław. Impact of shadow economy and corruption on tax efficiency. Journal of Management and Financial Sciences, [S. l.], n. 42, p. 9–24, 2021. DOI: 10.33119/JMFS.2021.42.1. Disponível em: https://econjournals.sgh.waw.pl/JMFS/article/view/2825. Acesso em: 19 maj. 2024.