Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40520&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%A7%80%EC%86%8D%EA%B0%80%EB%8A%A5%EC%84%B1%EC%97%90%20%EB%8C%80%ED%95%9C%20%EA%B0%80%EC%B9%98%EA%B0%88%EB%93%B1%EA%B3%BC%20%ED%95%A9%EC%9D%98%ED%98%95%EC%84%B1%EF%BC%9A%EC%B2%AD%EA%B3%84%EC%B2%9C%EB%B3%B5%EC%9B%90%EC%82%AC%EC%97%85%EC%9D%84%20%EC%A4%91%EC%8B%AC%EC%9C%BC%EB%A1%9C
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40520&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%A7%80%EC%86%8D%EA%B0%80%EB%8A%A5%EC%84%B1%EC%97%90%20%EB%8C%80%ED%95%9C%20%EA%B0%80%EC%B9%98%EA%B0%88%EB%93%B1%EA%B3%BC%20%ED%95%A9%EC%9D%98%ED%98%95%EC%84%B1%EF%BC%9A%EC%B2%AD%EA%B3%84%EC%B2%9C%EB%B3%B5%EC%9B%90%EC%82%AC%EC%97%85%EC%9D%84%20%EC%A4%91%EC%8B%AC%EC%9C%BC%EB%A1%9C
[4] http://www.sdi.re.kr/taxonomy/term/15672
[5] http://www.sdi.re.kr/si_download/40520/6484
[6] http://www.sdi.re.kr/studies_on/15672