/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: viethoangvu3 https://cdn.slidesharecdn.com/profile-photo-viethoangvu3-48x48.jpg?cb=1622514182 Giá»›i thiệu à, có gì mà giá»›i thiệu!!!