Nayak, S. K., and P. C. Mishra. “Emission from a Dual Fuel Operated Diesel Engine Fuelled With Calophyllum Inophyllum Biodiesel and Producer Gas”. International Journal of Automotive and Mechanical Engineering, vol. 14, no. 1, Dec. 2022, pp. 3954-69, doi:10.15282/ijame.14.1.2017.11.0321.