Pages 6-10
Mohamed A. Elbehiry; Mostafa Mahboob; Mohamed Marey; Sayed Hattab; Rezk Ghallab; Ragab Dohreig
Pages 24-30
Ismail I. Abo-Ghanema; Asmaa Aboelnour; Attaa M. Abd Elrehim; Hanan A. Ghoneim