Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40889&t=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%9E%90%EC%B9%98%EA%B5%AC%20%EC%9E%AC%EC%9B%90%EC%A1%B0%EB%8B%AC%EB%8A%A5%EB%A0%A5%20%EB%B0%8F%20%EC%9E%AC%EC%A0%95%EB%A0%A5%20%EA%B2%A9%EC%B0%A8%20%EC%88%98%EB%A0%B4%EC%84%B1%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40889&text=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%9E%90%EC%B9%98%EA%B5%AC%20%EC%9E%AC%EC%9B%90%EC%A1%B0%EB%8B%AC%EB%8A%A5%EB%A0%A5%20%EB%B0%8F%20%EC%9E%AC%EC%A0%95%EB%A0%A5%20%EA%B2%A9%EC%B0%A8%20%EC%88%98%EB%A0%B4%EC%84%B1%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/15701
[5] http://www.sdi.re.kr/si_download/40889/6853
[6] http://www.sdi.re.kr/studies_on/15701