Volume 8, Issue 1, 2012, Pages 225-231
Zahran F.M.; EL-Deen. I.M; Salama. M; Lotfy. A
Volume 4, Issue 1, 2008, Pages 38-54
Zahran F.M.; EL-Dosoky I .; Shiha G.E.; Keshta A.T.; Omran M.M.; Attallah A.M.