Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F38565&t=%EB%AC%BC%EC%A7%88%EC%88%98%EC%A7%80%EB%B2%95%EC%97%90%20%EC%9D%98%ED%95%9C%20%EC%9D%8C%EC%8B%9D%EB%AC%BC%EC%93%B0%EB%A0%88%EA%B8%B0%20%EC%9B%90%EC%B2%9C%EA%B0%90%EB%9F%89%20%EA%B0%80%EB%8A%A5%EB%9F%89%20%ED%8F%89%EA%B0%80%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F38565&text=%EB%AC%BC%EC%A7%88%EC%88%98%EC%A7%80%EB%B2%95%EC%97%90%20%EC%9D%98%ED%95%9C%20%EC%9D%8C%EC%8B%9D%EB%AC%BC%EC%93%B0%EB%A0%88%EA%B8%B0%20%EC%9B%90%EC%B2%9C%EA%B0%90%EB%9F%89%20%EA%B0%80%EB%8A%A5%EB%9F%89%20%ED%8F%89%EA%B0%80%20%EC%97%B0%EA%B5%AC
[4] http://www.si.re.kr/taxonomy/term/1806
[5] http://www.si.re.kr/si_download/38565/6247
[6] http://www.si.re.kr/studies_on/1806