K. Kalyani Radha, S. Naga Sarada, K. Rajagopal, and E.L. Nagesh. “Performance and Emission Characteristics of CI Engine Operated on Vegetable Oils As Alternate Fuels”. International Journal of Automotive and Mechanical Engineering, vol. 4, Dec. 2022, pp. 414-27, doi:10.15282/ijame.4.2011.4.0034.