Boopalan. N, Sathiskumar. S, Jeevabharathi. R, Gokulraj. D. 2020. “Experimental Investigation on Performance and Emission Characteristics of Biodiesel Fuelled Compression Ignition Engine With Oxygen Enrichment”. International Journal of Advanced Science and Technology 29 (05), 4054 -63. http://sersc.org/journals/index.php/IJAST/article/view/13671.