/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: jangjaemin https://cdn.slidesharecdn.com/profile-photo-jangjaemin-48x48.jpg?cb=1523639466 장재민 Jang, Jae Min WWW.JANGJAEMIN.COM