Rizgar Abdlkarim Abdlaziz, Yaseen Abdulrahman Ahmed, Burhan Ali Mohammed and Kamaran Qader Yaqub 2022. 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. 7, 2 (Jun. 2022), 1045–1074. DOI:https://doi.org/10.25212/lfu.qzj.7.2.39.