Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40354&t=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%ED%95%98%EC%88%98%EC%8A%AC%EB%9F%AC%EC%A7%80%20%EB%B0%9C%EC%83%9D%ED%98%84%ED%99%A9%20%EB%B0%8F%20%EB%B0%9C%EC%83%9D%EB%9F%89%20%EC%98%88%EC%B8%A1
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40354&text=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%ED%95%98%EC%88%98%EC%8A%AC%EB%9F%AC%EC%A7%80%20%EB%B0%9C%EC%83%9D%ED%98%84%ED%99%A9%20%EB%B0%8F%20%EB%B0%9C%EC%83%9D%EB%9F%89%20%EC%98%88%EC%B8%A1
[4] http://www.sdi.re.kr/taxonomy/term/15655
[5] http://www.sdi.re.kr/si_download/40354/6323
[6] http://www.sdi.re.kr/studies_on/15655