/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: abc871 https://cdn.slidesharecdn.com/profile-photo-abc871-48x48.jpg?cb=1527322004 Ä‘Æ¡n giản nhÆ°ng ko dá»… hiểu :)