Pages 171-176
Esam Ragab Meragea saad; osama abdulmoneem baraka; Nehad Helmy Harby
Pages 191-199
Abbas ALI Abbas; mohammed fawzy metwally; Khaled Haggag
Pages 209-216
Karim Eldin ahmed; Adel M. Shaaban; Mostafa I Fayad; Mohamed Ahmed Helal