Pages 49-55
muneer abdullah masoud; safwat elsayed abouhashem; ahmed ragab ali; ibrahem ismail elsayed
Pages 97-101
Omar Nass; A. Ragab; Abdellatif M. Zayed; Ashraf M. S. Shahin
Pages 228-234
Ahmed Wagdy Tantaway; Mahmoud Eladl; Ahmed Mamdouh Shoma; Ahmed Ragab Ali
Pages 261-267
abobaker mohamed; Khalid Abdelsamad; Hazem Elgalaly; Ahmed Eliwa