Pages 1-8
Attia Abdallah El-Gedawy; Yousry El Shazly; Hussein Abdalatif El sheikh
Pages 9-15
Sotohy A. Sotohy; Shimaa M. Emam; Rania M. Ewida
Pages 28-35
Sotohy Ahmed Sotohy; Samia Sayed Abdel Naby; Hanan Fahmi Sayed; Rania Mohamed Ewida