ºÝºÝߣshows by User: nguyentruongky9 / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: nguyentruongky9 / ºÝºÝߣShare feed for ºÝºÝߣshows by User: nguyentruongky9 https://public.slidesharecdn.com/v2/images/profile-picture.png Không có gì đặc biệt!