/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: SasithornMuangkoon https://cdn.slidesharecdn.com/profile-photo-SasithornMuangkoon-48x48.jpg?cb=1523621018 ๶Äป็à¸È¨¸™à¸±à¸�๶Äรียนà¸È¨¸­à¸�