/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: DrThanh2050 https://cdn.slidesharecdn.com/profile-photo-DrThanh2050-48x48.jpg?cb=1523636924 Tuổi thÆ° sinh mà đầu nhÆ° phụ huynh :D