Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F45616&t=%EB%8F%84%EC%8B%9C%EC%9A%A9%EC%88%98%EC%9D%98%20%EC%9C%84%EC%83%9D%ED%95%99%EC%A0%81%20%EC%95%88%EC%A0%84%EC%84%B1%20%EA%B4%80%EB%A6%AC%ED%98%84%ED%99%A9%20%EB%B0%8F%20%ED%96%A5%ED%9B%84%20%EA%B3%BC%EC%A0%9C
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F45616&text=%EB%8F%84%EC%8B%9C%EC%9A%A9%EC%88%98%EC%9D%98%20%EC%9C%84%EC%83%9D%ED%95%99%EC%A0%81%20%EC%95%88%EC%A0%84%EC%84%B1%20%EA%B4%80%EB%A6%AC%ED%98%84%ED%99%A9%20%EB%B0%8F%20%ED%96%A5%ED%9B%84%20%EA%B3%BC%EC%A0%9C
[4] http://www.sdi.re.kr/taxonomy/term/18533
[5] http://www.sdi.re.kr/si_download/45616/9090
[6] http://www.sdi.re.kr/studies_on/18533