Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40431&t=%5B%EC%97%B0%EA%B5%AC%EB%85%BC%EB%AC%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%93%B0%EB%A0%88%EA%B8%B0%EC%88%98%EA%B1%B0%EC%84%9C%EB%B9%84%EC%8A%A4%EC%9D%98%20%ED%9A%A8%EC%9C%A8%EC%84%B1%20%ED%8F%89%EA%B0%80
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40431&text=%5B%EC%97%B0%EA%B5%AC%EB%85%BC%EB%AC%B8%5D%20%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%93%B0%EB%A0%88%EA%B8%B0%EC%88%98%EA%B1%B0%EC%84%9C%EB%B9%84%EC%8A%A4%EC%9D%98%20%ED%9A%A8%EC%9C%A8%EC%84%B1%20%ED%8F%89%EA%B0%80
[4] http://www.sdi.re.kr/taxonomy/term/15663
[5] http://www.sdi.re.kr/si_download/40431/6396
[6] http://www.sdi.re.kr/studies_on/15663