/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: HoangNguyen121 https://cdn.slidesharecdn.com/profile-photo-HoangNguyen121-48x48.jpg?cb=1523631823 Gặp má»›i biết...........