Volume 14, Issue 1, March 2006, Pages 47-58
Hanaa H.A.Gomaa; M.M Hazaa; Kh.A El-Dougdoug; M.H Abdel-Ghaffar
Volume 13, Issue 1, March 2005, Pages 79-104
H.M Korkar; Hanaa H.A; Kh.A El-Dougdoug; Ibrahim Rihan.; Yehia Magdi A.