Jassim, O. A. L. ., & Al-Kawaz, S. M. . (2022). Economic measurement of the impact of some macroeconomic variables on the foreign trade of the Kingdom of Saudi Arabia for the period (1990-2019). Tikrit Journal of Administrative and Economic Sciences, 18(58, 1), 155–173. https://doi.org/10.25130/tjaes.18.58.1.9