Volume 9, Issue 1, December 2012, Pages 29-35
Ahmed Hassanein; Galal El-Sherbini; Abed-Elsaboor K.; Saad K.; Gaboor Gabour; El Mogy N. S.
Volume 4, Issue 1, September 2010, Pages 23-34
Ahmed M. Hassanein; Galal A. El Sherbieny; Saad G. K.