A. El Hag, A., A. Hassabo, A., Bushara Intesar, I. ., Turki, Y. . and O. Eisa, M. (2014) “Determine phosphorus and calcium in soil of the grazing area, El-Khuwei locality, West Kordofan State, Sudan”, Scientific Journal of Veterinary Advances, 3(8), pp. 91-95. Available at: http://sjournals.com/index.php/sjva/article/view/1436 (Accessed: 11April2021).