/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: nookj1 https://cdn.slidesharecdn.com/profile-photo-nookj1-48x48.jpg?cb=1523645893 à¸È¨¸¸à¹Šà¸�