Volume 38, Issue 2, April 2015, Pages 101-108
Dina A Elkady; Haitham Z Azazy; Arafa S Mansour; Shokry S Shokrallah
Volume 37, Issue 2, April 2014, Pages 143-155
Hussein M. Wally; Haitham Z. Azazi; Fahmy M. El-Khouly