Rizgar Abdlkarim Abdlaziz, Yaseen Abdulrahman Ahmed, Burhan Ali Mohammed, and Kamaran Qader Yaqub. “The Impact of Oil Price Shocks on Economic Growth - Iraq A Case Study for The Period (1968 - 2019) Using Symmetric and Asymmetric Co-Integration Analysis”. QALAAI ZANIST JOURNAL, vol. 7, no. 2, June 2022, pp. 1045-74, doi:10.25212/lfu.qzj.7.2.39.