“Response Surface Methodology (RSM) A Good Optimizer for Transesterification Reaction of Chrysophyllum Albidium Seed Oil to Chrysophyllum Albidium Oil Biodiesel”. 2014. International Journal of Chemical and Process Engineering Research 1 (4): 32-42. https://doi.org/10.18488/journal.65/2014.1.4/65.4.32.42.