Volume 33, Issue 2, June 2008, Pages 1-9
Walid Gloneim; Hamdy A. Ashour
Volume 30, Issue 4, December 2005, Pages 16-21
Samah M. El Safty; Hamdy A. Ashour; Hesien El Dessouki; Mohamed El Sawaf
Volume 29, Issue 2, June 2004, Pages 36-42
Yasser Dessouky; Hamdy A. Ashour