Hayder Habeeb Shunin, Abbas Ali Diwan, Ali Mohammed Hussein. “Experimental Study of the Effect of Fiber Orientationson Tensile Properties and Impact Strength of Unidirectional Fibers /Epoxy Composites”. Design Engineering, Nov. 2021, pp. 13563 -71, http://www.thedesignengineering.com/index.php/DE/article/view/6477.