Performance analysis of a diesel engine using margosa oil ethyl ester-based biodiesel with diethyl ether as an oxygenated additive oleh Ganesan Manikandan, Rajendran Prabakaran, Palanisamy Dhamodharan, Sung Chul Kim, George Godwin Joshuva, Mariyappan Boopathi, Chinnasamy Jegadheesan