Volume 8, Issue 2, August 2010, Pages 36-50
Yasser M. Ghanem; Moustafa A. Al- Araby; Medhat N. Nasef
Volume 8, Issue 2, August 2010, Pages 52-70
Yasser M. Ghanem; Moustafa A. Al- Araby; Mahmoud A. Elseify