ºÝºÝߣshows by User: suringuyetanh / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: suringuyetanh / ºÝºÝߣShare feed for ºÝºÝߣshows by User: suringuyetanh https://public.slidesharecdn.com/v2/images/profile-picture.png 1 miÌ€nh....vaÌ€ 1 miÌ€nh...