“Response Surface Methodology Based Optimization of Operating Parameters of Variable Compression Ratio C.I. Engine Fuelled With Diesel-Fish Oil Blends for Minimal Emissions”. International Journal of Current Engineering and Technology, vol. 1, no. 5.Special Issue, June 2016, pp. 464-71, https://ijcet.evegenis.org/index.php/ijcet/article/view/4336.