Volume 24, Issue 2, July 2010, Pages 16-29
M.F.I El-Akram; S.M.M Abdou; M.R.K Ashry; F.R.M Farrag
Volume 24, Issue 1, January 2010, Pages 14-29
F.R.M Farrag; M.F.I El-Akram,; K.M.R. Youssef