/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: MingChun1 https://cdn.slidesharecdn.com/profile-photo-MingChun1-48x48.jpg?cb=1522983708 Khó gần.....nhÆ°ng...gần rồi thì khó xa =))