Nagwa Osman El Shafie and Abdelmelik Ibrahim Khalafalla
Journal of Animal and Veterinary Advances 4 ( 1 ): 145 - 149 , 2005
Maaz Majzoub Abdel-Latif and Abdelmelik Ibrahim Khalafalla
Journal of Animal and Veterinary Advances 4 ( 3 ): 407 - 413 , 2005