H. A. Hussain, A. a M. Hussain, and L. M. Ali, “Stress Analysis of Fiber-reinforced Composite Built-up Beam Using the Unit Cell Method”, NJES, vol. 11, no. 3, pp. 419–428, Mar. 2008, Accessed: Nov. 23, 2024. [Online]. Available: https://nahje.com/index.php/main/article/view/537