/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: DzngCourteous https://cdn.slidesharecdn.com/profile-photo-DzngCourteous-48x48.jpg?cb=1523334113 Tá»± kỉ cấp Ä‘á»™ 3. ^_^!