Antunes da Maia, Wellington. “Software Taxation and the Necessity of Supplementary Law to Create a Software’s Tax Trough Residual Competence”. Revista Direito Tributário Atual, no. 37 (June 1, 2017): 466–482. Accessed July 22, 2024. https://revista.ibdt.org.br/index.php/RDTA/article/view/1475.