J. Audu and J. . O. Awulu, “Effect of extraction methods on food and biodiesel properties of shea-nut oil (Vitellaria paradoxa) ”, jpht, vol. 5, no. 1, pp. 17–26, Nov. 2016, Accessed: Aug. 29, 2025. [Online]. Available: https://journals.acspublisher.com/index.php/jpht/article/view/15668