“Measuring and Analyzing the Impact of the Customs Exchange Rate on Imports and Customs Revenues in Yemen: An Applied Econometric Study of Aden Port Customs Office (2016–2025)”. Economic Journal 14, no. 16 (August 29, 2026). Accessed October 8, 2026. https://journals.aden-univ.net/index.php/AEJ/article/view/250.