Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40464&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%A0%95%EB%B3%B4%ED%99%94%EC%88%98%EC%A4%80%EC%9D%98%20%EC%9E%90%EC%B9%98%EA%B5%AC%EB%B3%84%20%EA%B2%A9%EC%B0%A8%20%EB%B0%8F%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%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%2F40464&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%A0%95%EB%B3%B4%ED%99%94%EC%88%98%EC%A4%80%EC%9D%98%20%EC%9E%90%EC%B9%98%EA%B5%AC%EB%B3%84%20%EA%B2%A9%EC%B0%A8%20%EB%B0%8F%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%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/15667
[5] http://www.si.re.kr/si_download/40464/6428
[6] http://www.si.re.kr/studies_on/15667