Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40405&t=%5B%EC%97%B0%EA%B5%AC%EB%85%BC%EB%AC%B8%5D%20%EA%B1%B4%EB%AC%BC%EA%B3%BC%ED%91%9C%EC%A0%9C%EB%8F%84%EC%9D%98%20%EC%9A%B4%EC%98%81%EC%8B%A4%ED%83%9C%EC%99%80%20%EA%B0%9C%EC%84%A0%EB%B0%A9%ED%96%A5
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40405&text=%5B%EC%97%B0%EA%B5%AC%EB%85%BC%EB%AC%B8%5D%20%EA%B1%B4%EB%AC%BC%EA%B3%BC%ED%91%9C%EC%A0%9C%EB%8F%84%EC%9D%98%20%EC%9A%B4%EC%98%81%EC%8B%A4%ED%83%9C%EC%99%80%20%EA%B0%9C%EC%84%A0%EB%B0%A9%ED%96%A5
[4] http://www.sdi.re.kr/taxonomy/term/15660
[5] http://www.sdi.re.kr/si_download/40405/6373
[6] http://www.sdi.re.kr/studies_on/15660