Al-Saqa ZHY, Najim AH. Assessing the reality of internal control over sales tax in the ecommerce environment Empirical study in the General Commission of Taxes. Tikrit J. Admin. Econ. Sci. [Internet]. 2022 Mar. 31 [cited 2026 Mar. 6];18(57, 1):220-43. Available from: https://www.tjaes.org/ojs/index.php/tjaes/article/view/137