“Study of Performance and Emission Characteristics of Biodiesel Blends of Soybean and Karanja Oil on Twin-Cylinder Diesel Engine Test Rig”. International Journal of Current Engineering and Technology, vol. 1, no. 4.Special, Mar. 2016, pp. 197-01, https://ijcet.evegenis.org/index.php/ijcet/article/view/4196.