Benjamin Ternenge Abur, Bawa M. A., Abubakar Hamadu, and Goni Usman. “Design, Construction and Testing of Hydraulic Oil Press for Groundnut Oil Extraction”. Global Journal of Science Frontier Research 20, no. D5 (March 15, 2020): 19–25. Accessed May 4, 2024. https://journalofscience.org/index.php/GJSFR/article/view/3000.