Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40914&t=%EC%9A%A9%EC%A7%80%EB%B3%B4%EC%83%81%EC%B1%84%EA%B6%8C%EC%9D%98%20%EC%A0%81%EC%A0%95%20%EB%B0%9C%ED%96%89%EA%B8%88%EB%A6%AC%20%EA%B2%B0%EC%A0%95%EB%AA%A8%ED%98%95%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.si.re.kr%2Fnode%2F40914&text=%EC%9A%A9%EC%A7%80%EB%B3%B4%EC%83%81%EC%B1%84%EA%B6%8C%EC%9D%98%20%EC%A0%81%EC%A0%95%20%EB%B0%9C%ED%96%89%EA%B8%88%EB%A6%AC%20%EA%B2%B0%EC%A0%95%EB%AA%A8%ED%98%95%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[4] http://www.si.re.kr/taxonomy/term/15702
[5] http://www.si.re.kr/si_download/40914/6878
[6] http://www.si.re.kr/studies_on/15702