http://www.youtube.com/watch?v=ArLvDtsewn0&feature=player_detailpage#t=39s
ك كريم مصطفى مشرف برنامج Erdas Imagine 19 يوليو 2011 #1 http://www.youtube.com/watch?v=ArLvDtsewn0&feature=player_detailpage#t=39s