/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: phamtanbi https://cdn.slidesharecdn.com/profile-photo-phamtanbi-48x48.jpg?cb=1541982191 Làm việc bằng ngôn ngữ cÆ¡ thể