Rizgar Abdlkarim Abdlaziz, Yaseen Abdulrahman Ahmed, Burhan Ali Mohammed, و 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", QZJ, م 7, عدد 2, ص 1045–1074, 2022.