Varatharaju Perumal, Ram Subbiah , Amol Mangrulkar L, S. S. R. M. S. K. S. M. “Optimal Design and Analysis of Impact Energy of Automobile on Environment”. Design Engineering, July 2021, pp. 2104- 2111, http://www.thedesignengineering.com/index.php/DE/article/view/2534.