ºÝºÝߣshows by User: hahadamin / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: hahadamin / ºÝºÝߣShare feed for ºÝºÝߣshows by User: hahadamin https://public.slidesharecdn.com/v2/images/profile-picture.png 안녕?