/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: timasdy https://cdn.slidesharecdn.com/profile-photo-timasdy-48x48.jpg?cb=1523388881 ๶Äคย๶Äรียนà¸�รุงหยันวิทยาคาร