Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40898&t=%EC%8B%A4%ED%83%9C%EC%A1%B0%EC%82%AC%EB%A5%BC%20%ED%86%B5%ED%95%9C%20%EC%84%9C%EC%9A%B8%EC%9D%98%20%EB%B6%84%EB%87%A8%EC%A0%95%ED%99%94%EC%A1%B0%20%EC%B2%AD%EC%86%8C%EA%B0%84%EA%B2%A9%20%EA%B0%9C%EC%84%A0%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40898&text=%EC%8B%A4%ED%83%9C%EC%A1%B0%EC%82%AC%EB%A5%BC%20%ED%86%B5%ED%95%9C%20%EC%84%9C%EC%9A%B8%EC%9D%98%20%EB%B6%84%EB%87%A8%EC%A0%95%ED%99%94%EC%A1%B0%20%EC%B2%AD%EC%86%8C%EA%B0%84%EA%B2%A9%20%EA%B0%9C%EC%84%A0%20%EC%97%B0%EA%B5%AC
[4] http://www.si.re.kr/taxonomy/term/15701
[5] http://www.si.re.kr/si_download/40898/6862
[6] http://www.si.re.kr/studies_on/15701