/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: jang0054 https://cdn.slidesharecdn.com/profile-photo-jang0054-48x48.jpg?cb=1523670856 안녕하세요 Hello ! my name is young geun Jang