Salah M.M. Elamin, Tawfig E. Mohammed, Mohammed M. Salih, Mohammed A. Abdalla, Mohamed E.H. Mohamed, Rihab A. Omer, Abdelrahim Karrar and Imadeldin E. Aradaib
Pakistan Journal of Biological Sciences 7 ( 10 ): 1754 - 1757 , 2004