/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuserfc5a7b https://cdn.slidesharecdn.com/profile-photo-ssuserfc5a7b-48x48.jpg?cb=1523532740 ๶Äชี่ยวชาà¸�