Othman, Saber Perdaood, Yaseen O. Abdulaah, and Himdad Amin Abubakr. 2021. “Estimating the Demand Functio N of Private Cars in Kurdistan Region of Iraq-Erbil Governorate As a Model”. Tikrit Journal of Administrative and Economic Sciences 17 (56, 2):573-95. https://doi.org/10.25130/tjaes.17.56.2.34.