A. Mohamma, Zeena, and Ayad A. Abdul Razzak. “Free Vibration Analysis Of Curved Box Girder Bridges by Higher Order Finite Strip”. Al-Rafidain Engineering Journal (AREJ) 17, no. 4 (August 1, 2009): 1–16. Accessed September 27, 2025. https://jwups.uomosul.edu.iq/index.php/arej/article/view/30485.