S.Mahalingam, S.Saravanan and K.Naveen 2017. Effect of injection timing on emission analysis of a constant speed diesel engine running on biodiesel fuelled with pure diesel fuel. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE. 3, 1 Special issue (Aug. 2017), 180–185.