/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuserce0a40 https://cdn.slidesharecdn.com/profile-photo-ssuserce0a40-48x48.jpg?cb=1544155221 วิรัช รัตนเจริà¸�ทรัพย์