Volume 40, Issue 5, December 2015, Pages 36-45
Walaa Mahmoud El-Hadad; Ebrahim A. Badran
Volume 31, Issue 1, March 2006, Pages 1-16
Akram Ibrahim Elmitwally; M. Rashed
Volume 28, Issue 2, June 2003, Pages 1-22
Yehia El-Mashad