B., Madhava Varma, Ravi Kumar N., and Prasanthi `` G. “An Experimental Investigation of Vibration Characteristics of Compression Ignition Engine Running With Neem Methyl Ester”. International Journal of Automotive and Mechanical Engineering 13, no. 2 (December 9, 2022): 3434–3450. Accessed April 29, 2025. https://journal.ump.edu.my/ijame/article/view/8463.