1. A.B.M.S. Hossain and A.N, Boyce, Biodiesel Production from Waste Sunflower Cooking Oil as an environmental recycling process and renewable energy. BULG J AGRIC, 15, 312–317(2009).
2. S. Darwin Egi Agustian, Achmad Praptijanto, Transesterification of biodiesel from waste cooking oil using ultrasonic technique International Conference on Environment, 2010 (ICENV 2010).
3. Jehad A. Yamin, Nina Sakhnini, Ahmad Sakhrieh, Hamdana M.A, Environmental and performance study of a 4-Stroke CI engine powered with waste oil biodiesel, SCS, 9, 32–38 (2013).
4. Experimental investigation of injection timing on the performance and exhaust emissions of a rubber seed oil blend fuel in constant speed diesel engine
5. Senthil Kumar. M., Jaikumar. M. A comprehensive study on performance, emission and combustion behavior of a compression ignition engine fuelled with WCO (waste cooking oil) emulsion as fuel. Journal of the Energy Institute.