Nazir, Novizar, et al. “In-Situ Alkaline Transesterification of Jatropha Curcas Seed Oil for Production of Biodiesel and Nontoxic Jatropha Seed Cake”. International Journal on Advanced Science, Engineering and Information Technology, vol. 4, no. 1, Feb. 2014, pp. 7-13, doi:10.18517/ijaseit.4.1.353.