/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: yabuena https://cdn.slidesharecdn.com/profile-photo-yabuena-48x48.jpg?cb=1523582117 "The only man who never makes mistakes is the man who never does anything." คนที่ไม่เคยทำผิดคือคนที่ไม่ได้ทำอะไรเลย