Volume 59, Issue 2, April 2008, Pages 96-102
Azza. T. Ashour; M. E. Zakaria; Hoda M. Hammad; M. E. Nour E. Nour
Volume 59, Issue 2, April 2008, Pages 1032-110
Azza T. Ashour; Hoda M. Hammad; M. E. Nour; M. E. Zakaria
Volume 55, Issue 3, July 2004, Pages 375-384
M. E. Zakaria; T. E. Abd El-Wahab