Yusra Ihsan Sadeq, و Yaseen Othman Abdullah. 2023. "Estimating The Demand Function for Health Services (Civil and Governmental) For A Sampleof Hospitals in Erbil Governorate". QALAAI ZANIST JOURNAL 8 (1):1041-61. https://doi.org/10.25212/lfu.qzj.8.1.40.