Volume 20, Issue 2, July 2012, Pages 65-80
Afaf M Attia; Hend M Abo El-Atta; Basem S. El-Deek
Volume 20, Issue 1, January 2012, Pages 17-28
Afaf M Attia; Adel M. El-Badrawy; Haytham M. Shebel