Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40350&t=%EC%97%AC%EC%84%B1%EC%9D%98%20%EA%B2%BD%EC%A0%9C%ED%99%9C%EB%8F%99%EA%B3%BC%20%EA%B3%A0%EC%9A%A9%EC%A0%95%EC%B1%85
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40350&text=%EC%97%AC%EC%84%B1%EC%9D%98%20%EA%B2%BD%EC%A0%9C%ED%99%9C%EB%8F%99%EA%B3%BC%20%EA%B3%A0%EC%9A%A9%EC%A0%95%EC%B1%85
[4] http://www.sdi.re.kr/taxonomy/term/1806
[5] http://www.sdi.re.kr/si_download/40350/6319
[6] http://www.sdi.re.kr/studies_on/1806