Volume 34, Issue 4, December 2009, Pages 1-21
A. S. El-Ansary; Abd El-Razek Ahmed ElSayed Zeidan; Mahmoud Mohamed Abd El-Aziz Ahmed El-Gamal; Hamdy Ahmed Abd El-Latief Abd El-Latief El-Ghandour
Volume 26, Issue 2, June 2001, Pages 111-126
Mahmoud Mohamed Abd El-Aziz Ahmed El-Gamal
Volume 24, Issue 4, December 1999, Pages 1-11
M. Attia; Mahmoud Mohamed Abd El-Aziz Ahmed El-Gamal