A. K. Yakubu, M. M. Abubakar, M. Abubakar, and K. M. Bello. “Nutrients Digestibility and Nitrogen Utilization of Yankasa Rams Fed Ensiled Crushed Groundnut Shell, African Locust Bean Pulp and Poultry Litter With Various Supplementations”. Nigerian Journal of Animal Science and Technology (NJAST), Vol. 4, no. 4, Feb. 2022, pp. 81 -88, http://www.njast.com.ng/index.php/home/article/view/179.