Abubakar , Yelwa Sani. “Proximate and Selected Mineral Elements Analysis of Nigerian Ziziphus Spina-Christi (L.) Willd Edible Fruit Pulp”. Earthline Journal of Chemical Sciences 5, no. 1 (December 29, 2020): 231-240. Accessed September 26, 2025. https://www.earthlinepublishers.com/index.php/ejcs/article/view/286.