/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: tranquan31 https://cdn.slidesharecdn.com/profile-photo-tranquan31-48x48.jpg?cb=1523692674 thix là nói, ko thix cÅ©ng nói ^^