Nour, Ali Elhassan Mohammed, Mohsin Mahir Seed, and MohiyEldeen Mohmed Abdelmotalib. “Estimation of Income Taxation Function in Sudan for the Period (1992-2020)”. Journal of Economic, Administrative and Legal Sciences 6, no. 19 (July 30, 2022): 118–131. Accessed December 20, 2025. https://www.ajsrp.ojsexpert.com/index.php/jeals/article/view/5439.