/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: uyenthao526 https://cdn.slidesharecdn.com/profile-photo-uyenthao526-48x48.jpg?cb=1523528072 Sống theo nguyên tắc và làm theo quy luật!