Volume 32, Issue 4, October 2009, Pages 419-427
Ahrned A, Mobarka; Attia E. Azzam; M. Alaam
Volume 31, Issue 4, October 2008, Pages 331-336
M. Alaam; M. Abdelkariem; M. A. Ekhazendar
Volume 31, Issue 2, April 2008, Pages 151-158
M. Abdel-Kariem; M. A. El-Khazendar; M. Alaam