Pages 7-14
ahmed M. hashem; Magdy Mustafa Badway; Mohamed A. Helal
Pages 15-22
Mostafa I Fayad; Gamal Mokhtar Alwafi; Ramy Abdallah Abdelrahim; Ahmed Atef Shon
Pages 31-41
Ahmed El-Sayed Bayoumi; Tamer Elhamy Shokry; Hssein Ramadan Mohammed