/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ssuserf4d538 https://cdn.slidesharecdn.com/profile-photo-ssuserf4d538-48x48.jpg?cb=1523571161 ๶Äป้à¸È¨¸„à¸È¨¸”ีྺองสังคมà¸�็พอà¹�ล้ว