/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: cuongtuantunguyen https://cdn.slidesharecdn.com/profile-photo-cuongtuantunguyen-48x48.jpg?cb=1523512600 chuẩn wá rồi không cần phải thêm bá»›t gì nữa đâu , hô hô hô :D