Delan Ramadhan Tamarkhan, and Ameen M. Saeed ALedresi. “Diversification of Income Sources in the United Arab Emirates for the Period 1975-2022 (An Economic Analytical Study)”. Tikrit Journal of Administrative and Economic Sciences, vol. 20, no. 67, part 1, Sept. 2024, pp. 18-36, doi:10.25130/tjaes.20.67.1.2.