/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: wilsonboonxian https://cdn.slidesharecdn.com/profile-photo-wilsonboonxian-48x48.jpg?cb=1524570966 ÓïÑÔÌì²Å£¡