Volume 21, Issue 1, March 2011, Pages 8-14
Badawi A. A.; Salama S. S.; Elham A. Elibiary
Volume 21, Issue 1, March 2011, Pages 1-2
G. A. M. Zohair
Volume 20, Issue 2, March 2010, Pages 31-34
R. H. Abdel-Dayem; N. M. Marzouk; G.N. Ali
Volume 15, Issue 2, March 2005, Pages 103-108
N. H. El-Nakhal