Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40353&t=%EA%B1%B4%EC%B6%95%EB%AC%BC%20%EC%95%88%EC%A0%84%EA%B4%80%EB%A6%AC%EC%A0%95%EB%B3%B4%EC%B2%B4%EA%B3%84%20%EA%B5%AC%EC%B6%95%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40353&text=%EA%B1%B4%EC%B6%95%EB%AC%BC%20%EC%95%88%EC%A0%84%EA%B4%80%EB%A6%AC%EC%A0%95%EB%B3%B4%EC%B2%B4%EA%B3%84%20%EA%B5%AC%EC%B6%95%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/1806
[5] http://www.sdi.re.kr/si_download/40353/6322
[6] http://www.sdi.re.kr/studies_on/1806