ºÝºÝߣshows by User: trungnguyenduong / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: trungnguyenduong / ºÝºÝߣShare feed for ºÝºÝߣshows by User: trungnguyenduong https://cdn.slidesharecdn.com/profile-photo-trungnguyenduong-48x48.jpg?cb=1523714211 Trung DÅ©ng chỉ là biệt danh:)