Volume 20, Issue 1, March 2010, Pages 253-259
A. M. Youssif
Volume 20, Issue 1, March 2010, Pages 324-341
K. M. Kamel; A. A. Bassiouni; M. A. Afify; N.S. Rabie
Volume 16, Issue 1, March 2006, Pages 61-69
M. M. Amer; Wafaa A. Abd El-Ghany