/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: viranthony https://cdn.slidesharecdn.com/profile-photo-viranthony-48x48.jpg?cb=1523416939 wen biết gì k mà nói ??? wen thì biết nhau wa òi , nói gì nữa