Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40911&t=%ED%95%B4%ED%94%BC%ED%95%98%EC%9A%B0%EC%8A%A4%20%EC%8B%9C%EB%B2%94%EC%82%AC%EC%97%85%20%EC%82%AC%EB%A1%80%EB%B6%84%EC%84%9D%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EC%A3%BC%EA%B1%B0%EC%A7%80%EC%9E%AC%EC%83%9D%20%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40911&text=%ED%95%B4%ED%94%BC%ED%95%98%EC%9A%B0%EC%8A%A4%20%EC%8B%9C%EB%B2%94%EC%82%AC%EC%97%85%20%EC%82%AC%EB%A1%80%EB%B6%84%EC%84%9D%EC%9D%84%20%ED%86%B5%ED%95%9C%20%EC%A3%BC%EA%B1%B0%EC%A7%80%EC%9E%AC%EC%83%9D%20%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[4] http://www.si.re.kr/taxonomy/term/15702
[5] http://www.si.re.kr/si_download/40911/6875
[6] http://www.si.re.kr/studies_on/15702