Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40369&t=%EC%84%9C%EC%9A%B8%20%EB%8F%84%EC%8B%AC%EA%B3%B5%EA%B0%84%EC%9D%98%20%EB%B3%80%ED%99%94%EC%99%80%20%EC%A0%95%EC%B1%85%EC%9D%98%20%EC%97%AD%EC%82%AC%20%E2%85%A0%20%3A%20%EA%B4%80%EB%A6%AC%EC%A3%BC%EC%9D%98%EC%A0%81%20%EC%A0%91%EA%B7%BC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40369&text=%EC%84%9C%EC%9A%B8%20%EB%8F%84%EC%8B%AC%EA%B3%B5%EA%B0%84%EC%9D%98%20%EB%B3%80%ED%99%94%EC%99%80%20%EC%A0%95%EC%B1%85%EC%9D%98%20%EC%97%AD%EC%82%AC%20%E2%85%A0%20%3A%20%EA%B4%80%EB%A6%AC%EC%A3%BC%EC%9D%98%EC%A0%81%20%EC%A0%91%EA%B7%BC
[4] http://www.sdi.re.kr/taxonomy/term/15656
[5] http://www.sdi.re.kr/si_download/40369/6338
[6] http://www.sdi.re.kr/studies_on/15656