Pages 211-216
Omar Reyad; Hanaa M. Mansour; Elnomery A. Zanaty; Mohamed Heshmat
Pages 226-233
Usama Sayed; Samy Bakheet; Mahmoud A. Mofaddel; Zenab El-Zohry
Pages 274-285
Hamdy H. El-Sayed; Elham M. Abd-Elgaber; E. A. Zanaty; Samy S. Bakheet