/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: thaiaviation https://cdn.slidesharecdn.com/profile-photo-thaiaviation-48x48.jpg?cb=1522855038 ธรรมดา ธรรมดี ธรรมชาติ