/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: duyanhnguyen98622733 https://cdn.slidesharecdn.com/profile-photo-duyanhnguyen98622733-48x48.jpg?cb=1523445372 Hoàng Quyên Nguyá»…n