/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: nh0ckbUnvIai235 https://cdn.slidesharecdn.com/profile-photo-nh0ckbUnvIai235-48x48.jpg?cb=1523432067 ai muốn biết thì liên hệ