/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ELVISKHAU https://cdn.slidesharecdn.com/profile-photo-ELVISKHAU-48x48.jpg?cb=1524567983 dạo này bị khùng khùng..nhÆ°ng vẫn zdui zde.hehe