ºÝºÝߣshows by User: giodongxanh / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: giodongxanh / ºÝºÝߣShare feed for ºÝºÝߣshows by User: giodongxanh https://public.slidesharecdn.com/v2/images/profile-picture.png hồi sau sẽ rõ!