Ruiz Méndez, M. V., and J. Huesa Lope. “Shea Butter”. Grasas y Aceites 42, no. 2 (April 30, 1991): 151–154. Accessed April 26, 2024. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1264.