Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40895&t=%EA%B1%B0%EC%8B%9C%EA%B2%BD%EC%A0%9C%20%EC%9A%94%EC%9D%B8%EC%9D%84%20%EA%B3%A0%EB%A0%A4%ED%95%9C%20%EC%A3%BC%ED%83%9D%20%EB%A7%A4%EB%A7%A4%E2%8B%85%EC%A0%84%EC%84%B8%EC%8B%9C%EC%9E%A5%EC%9D%98%20%EB%8F%99%ED%95%99%EC%A0%81%20%EC%83%81%EA%B4%80%EA%B4%80%EA%B3%84%20%EB%B6%84%EC%84%9D
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40895&text=%EA%B1%B0%EC%8B%9C%EA%B2%BD%EC%A0%9C%20%EC%9A%94%EC%9D%B8%EC%9D%84%20%EA%B3%A0%EB%A0%A4%ED%95%9C%20%EC%A3%BC%ED%83%9D%20%EB%A7%A4%EB%A7%A4%E2%8B%85%EC%A0%84%EC%84%B8%EC%8B%9C%EC%9E%A5%EC%9D%98%20%EB%8F%99%ED%95%99%EC%A0%81%20%EC%83%81%EA%B4%80%EA%B4%80%EA%B3%84%20%EB%B6%84%EC%84%9D
[4] http://www.sdi.re.kr/taxonomy/term/15701
[5] http://www.sdi.re.kr/si_download/40895/6859
[6] http://www.sdi.re.kr/studies_on/15701