/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: maihuong1447 https://cdn.slidesharecdn.com/profile-photo-maihuong1447-48x48.jpg?cb=1523479284 Thích sá»± Ä‘Æ¡n giản, ghét những gì phức tạp!