El-Fadaly, H., F.S. Abdilla and E.E.Y. El-Badrawy
Pakistan Journal of Biological Sciences 2 ( 1 ): 1 - 6 , 1999
El-Fadaly, H. and K.A. Zaied
Pakistan Journal of Biological Sciences 2 ( 3 ): 627 - 634 , 1999