Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40406&t=%5B%EC%97%B0%EA%B5%AC%EB%85%B8%ED%8A%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%ED%96%89%EC%A0%95%EA%B0%9C%ED%98%81%EC%9D%98%20%ED%98%84%ED%99%A9%EA%B3%BC%20%ED%96%A5%ED%9B%84%EA%B3%BC%EC%A0%9C
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40406&text=%5B%EC%97%B0%EA%B5%AC%EB%85%B8%ED%8A%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%ED%96%89%EC%A0%95%EA%B0%9C%ED%98%81%EC%9D%98%20%ED%98%84%ED%99%A9%EA%B3%BC%20%ED%96%A5%ED%9B%84%EA%B3%BC%EC%A0%9C
[4] http://www.sdi.re.kr/taxonomy/term/15660
[5] http://www.sdi.re.kr/si_download/40406/6374
[6] http://www.sdi.re.kr/studies_on/15660