Measuring the tax gap resulting from the application of the direct deduction method and its reflection on the financial objective of the tax: Applied research in the General Directorate of education in Diyala. Journal of Accounting and Financial Studies ( JAFS ), [S. l.], v. 17, n. 61, p. 136–151, 2022. Disponível em: https://jpgiafs.uobaghdad.edu.iq/index.php/JAFS/article/view/1117.. Acesso em: 20 dec. 2024.