/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: loitrinh771 https://cdn.slidesharecdn.com/profile-photo-loitrinh771-48x48.jpg?cb=1523403453 Ch0a tui Ä‘uOc cAm oN cuOc dOi ,cAm oN mOi nguOi........!!!!