/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: tientieunhi https://cdn.slidesharecdn.com/profile-photo-tientieunhi-48x48.jpg?cb=1523553762 buồn Æ¡i là sầu!!! u ám!!! :(