/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: trinhhoahiep https://cdn.slidesharecdn.com/profile-photo-trinhhoahiep-48x48.jpg?cb=1523518040 Lao Ä‘á»™ng là vinh quang!