Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40917&t=%EB%85%B8%EC%9D%B8%EC%A3%BC%EA%B1%B0%ED%99%98%EA%B2%BD%20%EC%8B%A4%ED%83%9C%EB%B6%84%EC%84%9D%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EC%82%AC%EC%9A%A9%EC%84%B1%20%ED%8F%89%EA%B0%80%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40917&text=%EB%85%B8%EC%9D%B8%EC%A3%BC%EA%B1%B0%ED%99%98%EA%B2%BD%20%EC%8B%A4%ED%83%9C%EB%B6%84%EC%84%9D%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EC%82%AC%EC%9A%A9%EC%84%B1%20%ED%8F%89%EA%B0%80%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/15702
[5] http://www.sdi.re.kr/si_download/40917/6881
[6] http://www.sdi.re.kr/studies_on/15702