M Atta, Ayman; H Mohamed, Nermen; K Hegazy, Ahmad; M Moustafa, Yasser; R Mohamed, Rodina; Safwat, Gehan; Diab, Ayman A(Multidisciplinary Digital Publishing Institute, 2020)
Hatem, Yasmine; Hammad, Gehan; Safwat, Gehan(Academy of Scientific Rescarch and Technology National Information and Documentation Centre (NIDOC), 2022-04)