/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: josephtran041094 https://cdn.slidesharecdn.com/profile-photo-josephtran041094-48x48.jpg?cb=1523411491 Khi quen thì sẽ biết không cần quảng cáo làm gì...^^