Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40877&t=%EB%8C%80%ED%98%95%EA%B5%AD%EC%B1%85%EC%82%AC%EC%97%85%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EA%B1%B4%EC%84%A4%ED%88%AC%EC%9E%90%EC%9D%98%20%EA%B2%BD%EA%B8%B0%EB%B6%80%EC%96%91%ED%9A%A8%EA%B3%BC%20%EB%B6%84%EC%84%9D
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40877&text=%EB%8C%80%ED%98%95%EA%B5%AD%EC%B1%85%EC%82%AC%EC%97%85%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EA%B1%B4%EC%84%A4%ED%88%AC%EC%9E%90%EC%9D%98%20%EA%B2%BD%EA%B8%B0%EB%B6%80%EC%96%91%ED%9A%A8%EA%B3%BC%20%EB%B6%84%EC%84%9D
[4] http://www.sdi.re.kr/taxonomy/term/15700
[5] http://www.sdi.re.kr/si_download/40877/6841
[6] http://www.sdi.re.kr/studies_on/15700