Osarumwense, J. O ., Ebo, N ., Omorodion, N. T. and Owie, C. I. “Physico-Chemical Characteristics of Biodiesel Produced via Transesterification of Commercial Vegetable (Soya Bean) Oil”. NIPES - Journal of Science and Technology Research, vol. 2, no. 3, Aug. 2020, doi:10.37933/nipes/2.3.2020.19.