/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: dangvanthien https://cdn.slidesharecdn.com/profile-photo-dangvanthien-48x48.jpg?cb=1523403598 còn Ä‘á»™c thân.............!!!!!!!!!!!!!!