Volume 22, Issue 1, March 2013, Pages 91-94
K. Sultan; R. E., Khalafalla; M. A. Elseify
Volume 22, Issue 1, March 2013, Pages 121-125
W. M. Arafa; Lilian N. Mahrous; S. M. Aboelhadid; A. E. Abdel-Ghany
Volume 15, Issue 2, March 2005, Pages 255-257
K. M. Ibrahim