1.
Quantile Regression Varying-Coefficient Model in The Case of Longitudinal Data: A Study on The Success Rates of Secondary Schools in Al-Diwaniyah Governorate \ Iraq. KJEAS. 2025;17(56):1097-1111. Accessed October 4, 2026. https://kjeas.uowasit.edu.iq/index.php/kjeas/article/view/1393