M.Kumana Chakra Varthi, M.Sivaraja, M.Jegan, A.R.Krishnaraja. “Experimental Study on Hybrid Fiber Reinforced Composites Using Waste Fibers”. International Journal of Advanced Science and Technology, Vol. 29, no. 7, May 2020, pp. 831 -35, http://sersc.org/journals/index.php/IJAST/article/view/14929.