Ejilah, R. I., Lukman, A., & Bello, A. A. (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. Retrieved from https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/552