Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40915&t=%EC%84%9C%EC%9A%B8%EA%B4%91%EC%97%AD%EC%9E%90%ED%99%9C%EC%84%BC%ED%84%B0%20%ED%99%9C%EC%84%B1%ED%99%94%20%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%2F40915&text=%EC%84%9C%EC%9A%B8%EA%B4%91%EC%97%AD%EC%9E%90%ED%99%9C%EC%84%BC%ED%84%B0%20%ED%99%9C%EC%84%B1%ED%99%94%20%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/15702
[5] http://www.sdi.re.kr/si_download/40915/6879
[6] http://www.sdi.re.kr/studies_on/15702