/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: HaKimNgan https://cdn.slidesharecdn.com/profile-photo-HaKimNgan-48x48.jpg?cb=1523426165 ChÆ¡i thì biết, không việc gì phải giá»›i thiệu.