/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: nongjhapichayanin https://cdn.slidesharecdn.com/profile-photo-nongjhapichayanin-48x48.jpg?cb=1523267619 ๶Äป็à¸È¨¸„น