Volume 20, Issue 1, March 2010, Pages 247-252
G. A. Zohair; M. M. Amer; A. E. Hanafei
Volume 20, Issue 1, March 2010, Pages 253-259
A. M. Youssif
Volume 18, Issue 1, March 2008, Pages 79-86
M. M. Amer; A. El-H. A. Hanafie; G. A. Zohair; Wafaa- Abd-ELGhany
Volume 16, Issue 1, March 2006, Pages 61-69
M. M. Amer; Wafaa A. Abd El-Ghany