Pages 1-17
Abd El Rahman Ahmed Khattaby
Pages 19-39
mohamed fathi sadek; Athar Mostafa Qorany
Pages 41-67
Ashraf I. G Elhetawy; Alaa A El-Dahhar; Elsayed H Elebiary; Mona A Abo El-Wafa; Ayman M Lotfy; Nadezhda - Emelianova
Pages 33-54
Yasser Thabet Moustafa; ahmed abdalla ali; Mohamed El-Dahshouri
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