Ejilah, Robinson Ichakpa, Abdulkadir Lukman, and Adisa Ademola Bello. 2012. “Investigation of Sclerocarya Birrea Seed Oil Extracted As a Bioenergy Resource for Compression Ignition Engines”. International Journal of Agricultural and Biological Engineering 5 (3):59-67. https://doi.org/10.25165/ijabe.v5i3.552.