خالد حسين علي المرزوك, and رجاء عبدالله عيسى السالم. 2024. “Measure and Test the Causal Relationship Between the Global Oil Market Indicators for the Period 1970 - 2009 Using the Model Hacio (Hsiao)”. Iraqi Journal for Administrative Sciences 7 (27). كربلاء، جمهورية العراق:86-125. https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/2776.