/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: namquach319 https://cdn.slidesharecdn.com/profile-photo-namquach319-48x48.jpg?cb=1690450049 nói chung là gặp thì biết.....hjjhjj