http://www.youtube.com/watch?v=6gz8tbDhAV0&feature=player_detailpage#t=28s
ك كريم مصطفى مشرف برنامج Erdas Imagine 19 يوليو 2011 #1 http://www.youtube.com/watch?v=6gz8tbDhAV0&feature=player_detailpage#t=28s