Volume 22, Issue 1, March 2013, Pages 105-111
Amani A. Saleh
Volume 20, Issue 2, March 2010, Pages 31-34
R. H. Abdel-Dayem; N. M. Marzouk; G.N. Ali
Volume 20, Issue 1, March 2010, Pages 247-252
G. A. Zohair; M. M. Amer; A. E. Hanafei