Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40438&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EB%88%88%20%26middot%3B%20%EB%B9%84%EB%A1%9C%20%EC%9D%B8%ED%95%9C%20%EB%8F%84%EC%8B%9C%EB%B6%80%20%EA%B5%90%ED%86%B5%EB%A7%9D%EC%9D%98%20%EA%B1%B0%EC%8B%9C%EC%A0%81%20%EC%98%81%ED%96%A5%EB%B6%84%EC%84%9D
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40438&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EB%88%88%20%26middot%3B%20%EB%B9%84%EB%A1%9C%20%EC%9D%B8%ED%95%9C%20%EB%8F%84%EC%8B%9C%EB%B6%80%20%EA%B5%90%ED%86%B5%EB%A7%9D%EC%9D%98%20%EA%B1%B0%EC%8B%9C%EC%A0%81%20%EC%98%81%ED%96%A5%EB%B6%84%EC%84%9D
[4] http://www.sdi.re.kr/taxonomy/term/15664
[5] http://www.sdi.re.kr/si_download/40438/6402
[6] http://www.sdi.re.kr/studies_on/15664