Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F38379&t=%EC%A3%BC%EA%B1%B0%EA%B8%B0%EC%A4%80%EC%9D%98%20%EC%9D%98%EC%9D%98%EC%99%80%20%EC%A0%95%EC%B1%85%EC%A0%81%20%ED%99%9C%EC%9A%A9%EB%B0%A9%EC%95%88
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F38379&text=%EC%A3%BC%EA%B1%B0%EA%B8%B0%EC%A4%80%EC%9D%98%20%EC%9D%98%EC%9D%98%EC%99%80%20%EC%A0%95%EC%B1%85%EC%A0%81%20%ED%99%9C%EC%9A%A9%EB%B0%A9%EC%95%88
[4] http://www.sdi.re.kr/taxonomy/term/15652
[5] http://www.sdi.re.kr/si_download/38379/6231
[6] http://www.sdi.re.kr/studies_on/15652