/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: BordinJanchua https://cdn.slidesharecdn.com/profile-photo-BordinJanchua-48x48.jpg?cb=1523119524 เปิดใช้งาน 07.21.2010