H. I .Seri, T. Hassan, M.M. Salih, A.D. Abakar, A. A. Ismail and T. A. Tigani
Journal of Animal and Veterinary Advances 3 ( 11 ): 726 - 729 , 2004
Seri, H. I., T. Hassan, M. M. Salih and A.D. Abakar
Journal of Animal and Veterinary Advances 3 ( 11 ): 736 - 739 , 2004