Adil Salim Elsheikh and Faisal Omer Ahmed
Journal of Animal and Veterinary Advances 4 ( 5 ): 506 - 509 , 2005
Adil Salim Elsheikh and Faisal Omer Ahmed Elzubeir
Journal of Animal and Veterinary Advances 3 ( 8 ): 497 - 502 , 2004