Hammadi, Mustafa Fadhil. “Testing the Causal Relationship Between Spending on Education and Economic Growth in Iraq for the Period (1990-2020) ”. Tikrit Journal of Administrative and Economic Sciences 18, no. 60, 1 (February 24, 2023): 391–409. Accessed March 7, 2026. https://www.tjaes.org/ojs/index.php/tjaes/article/view/628.