Design, Construction and Testing of Hydraulic Oil Press for Groundnut Oil Extraction. Global Journal of Science Frontier Research, [S. l.], v. 20, n. D5, p. 19–25, 2020. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/3000. Acesso em: 7 aug. 2026.