/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ljnkkelvjn https://cdn.slidesharecdn.com/profile-photo-ljnkkelvjn-48x48.jpg?cb=1523554561 tôi cô Ä‘Æ¡n...!!!