- http://blog.naver.com/PostView.nhn?blogId=mihwa5860&logNo=220947267547
- http://blog.naver.com/PostView.nhn?blogId=happydaysok7&logNo=220950308968
- http://cafe.daum.net/speedfarm-0/cxJz/18?q=%BB%F3%C3%DF%20%C0%E7%B9%E8%B9%E6%B9%FD