/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: comet361 https://public.slidesharecdn.com/v2/images/profile-picture.png Bạch DÆ°Æ¡ng B-er ~> tá»± hiểu >,~ :))