Volume 40, Issue 2, June 2015, Pages 12-21
E. H. Abdelhay; F. W. Zaki; Sherif S. Kishk; H. S. Moustafa
Volume 25, Issue 3, September 2000, Pages 36-51
F. W. Zaki; Mohamed E. Morsy; M. El-Metwally
Volume 25, Issue 1, March 2000, Pages 20-29
Sherin E. Kishk; F. W. Zaki; R. El-Awadi