Links
[1] http://www.si.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40364&t=%EC%88%98%EB%8F%84%EA%B6%8C%20%EC%A3%BC%EA%B1%B0%20%EB%B0%8F%20%EC%82%B0%EC%97%85%EC%9E%85%EC%A7%80%20%EB%B3%80%ED%99%94%EB%B6%84%EC%84%9D
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.si.re.kr%2Fnode%2F40364&text=%EC%88%98%EB%8F%84%EA%B6%8C%20%EC%A3%BC%EA%B1%B0%20%EB%B0%8F%20%EC%82%B0%EC%97%85%EC%9E%85%EC%A7%80%20%EB%B3%80%ED%99%94%EB%B6%84%EC%84%9D
[4] http://www.si.re.kr/taxonomy/term/15656
[5] http://www.si.re.kr/si_download/40364/6333
[6] http://www.si.re.kr/studies_on/15656