Volume 28, OCTOBER- DECEMBER, October 2007, Pages 192-198
Saied M.M;; Ragab M.M.; Omar E.H.; Abd Elaziz M.A.
Volume 28, JULY- SEPTEMBER, July 2007, Pages 148-157
Elsayed A. Elkhatib; Ahmed M. Mahdy
Volume 28, APRIL- JUNE, April 2007, Pages 106-116
Abdul Aziz A.M; Ekhmaj A.I