Volume 6, Issue 1, June 1997, Pages 48-51
Gamal Ali
Volume 5, Issue 2, December 1996, Pages 13-20
Abdel-Mohsen Hamam; Magda El-Tohamy; Gamal Ali
Volume 5, Issue 2, December 1996, Pages 105-112
Usama Ali; Magda El-Tohamy; Gamal Ali