A. Al-Delewy, Abdul-Hadi, Abdul-Hassan K. Al-Shukur, and Atheer Z. M. Al-Qaisi. “Optimum Safe Hydraulic Design of Culverts”. Journal of Engineering and Sustainable Development 12, no. 1 (March 1, 2008): 66–88. Accessed April 19, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1637.