Ravivarman, R., K. Palaniradja, and R. Prabhu Sekar. “Performance Enhancement of Normal Contact Ratio Gearing System through Correction Factor”. Journal of Mechanical Engineering and Sciences, Vol. 13, no. 3, Sept. 2019, pp. 5242 -58, doi:10.15282/jmes.13.3.2019.03.0429.