/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: nafe3n https://cdn.slidesharecdn.com/profile-photo-nafe3n-48x48.jpg?cb=1687138074 à¸È¨¸´à¸ªà¸´à¸•à¹�พทย์