د/ صالح عبدالله السالمي د/ صالح عبدالله السالمي. “A Quantitative Study of the Effectiveness of the Tax System in Increasing General Budget Revenues in Yemen During the Period (1990-2015 AD)”. Civilization University Journal of Applied and Humanitarian Researches 8, no. 08 (August 7, 2025). Accessed March 7, 2026. https://journals.civilizationuniv.edu.ye/index.php/cujahr/article/view/83.