Volume 13, Issue 2, September 2005, Pages 419-440
A Abou El-Khashab; Safia A.M A. Taleb; Wafaa T Saeed
Volume 13, Issue 2, September 2005, Pages 441-452
Wafaa T Saeed; H Z Hassan; Saffia M.M Gazy; Eglal M.S Shaban