محمد علي ابراهيم العامري, and ميثم ربيع هادي. “The Impact of the Change in Pricing Activity Systems on the Growing Risk of Crude Oil Prices”. Iraqi Journal for Administrative Sciences 4, no. 17 (June 11, 2024): 1–39. Accessed January 19, 2025. https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/1893.