Suleiman, Sadiq Aziz, and Mohamed N. Mahmoud. “The Impact of Customs Revenues on the state’s General Budget An Analytical Study in the Jordanian Economy for the Period (2004-2019)”. Tikrit Journal of Administrative and Economic Sciences, vol. 17, no. 56, 4, Dec. 2021, pp. 328-43, doi:10.25130/tjaes.17.56.4.20.