/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: TuNguyen21 https://cdn.slidesharecdn.com/profile-photo-TuNguyen21-48x48.jpg?cb=1603186612 Luôn luôn lắng nghe, tuỳ từng chuyện má»›i hiểu :))