/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: pgchick1 https://cdn.slidesharecdn.com/profile-photo-pgchick1-48x48.jpg?cb=1523756395 xấu nhÆ°ng biết phấn đấu ^^ :p