ºÝºÝߣshows by User: rio_ryukawa / http://www.slideshare.net/images/logo.gif ºÝºÝߣshows by User: rio_ryukawa / ºÝºÝߣShare feed for ºÝºÝߣshows by User: rio_ryukawa https://cdn.slidesharecdn.com/profile-photo-rio_ryukawa-48x48.jpg?cb=1522840004 ►►►►►►►►►►►►►►►