Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40355&t=%EC%88%98%EB%8F%84%EA%B6%8C%20%ED%99%98%EA%B2%BD%EC%98%A4%EC%97%BC%EA%B3%BC%20%EC%A7%80%EC%97%AD%EA%B2%BD%EC%A0%9C%EB%B0%9C%EC%A0%84%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40355&text=%EC%88%98%EB%8F%84%EA%B6%8C%20%ED%99%98%EA%B2%BD%EC%98%A4%EC%97%BC%EA%B3%BC%20%EC%A7%80%EC%97%AD%EA%B2%BD%EC%A0%9C%EB%B0%9C%EC%A0%84%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/15655
[5] http://www.sdi.re.kr/si_download/40355/6324
[6] http://www.sdi.re.kr/studies_on/15655