Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40899&t=%EC%97%90%EB%84%88%EC%A7%80%20%EC%84%B1%EB%8A%A5%20%ED%96%A5%EC%83%81%EC%9D%84%20%EC%9C%84%ED%95%9C%20%ED%95%99%EA%B5%90%EA%B1%B4%EB%AC%BC%20%EA%B0%9C%EB%B3%B4%EC%88%98%20%EC%A0%95%EC%B1%85%EC%B6%94%EC%A7%84%EC%B2%B4%EA%B3%84%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40899&text=%EC%97%90%EB%84%88%EC%A7%80%20%EC%84%B1%EB%8A%A5%20%ED%96%A5%EC%83%81%EC%9D%84%20%EC%9C%84%ED%95%9C%20%ED%95%99%EA%B5%90%EA%B1%B4%EB%AC%BC%20%EA%B0%9C%EB%B3%B4%EC%88%98%20%EC%A0%95%EC%B1%85%EC%B6%94%EC%A7%84%EC%B2%B4%EA%B3%84%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/15701
[5] http://www.sdi.re.kr/si_download/40899/6863
[6] http://www.sdi.re.kr/studies_on/15701