Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F45612&t=%EC%A0%95%EB%B9%84%EC%82%AC%EC%97%85%20%EC%A1%B0%ED%95%A9%EC%84%A4%EB%A6%BD%20%EB%B2%95%EC%A0%81%20%EC%9F%81%EC%A0%90%20%EB%B6%84%EC%84%9D%20%EB%B0%8F%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC%20
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F45612&text=%EC%A0%95%EB%B9%84%EC%82%AC%EC%97%85%20%EC%A1%B0%ED%95%A9%EC%84%A4%EB%A6%BD%20%EB%B2%95%EC%A0%81%20%EC%9F%81%EC%A0%90%20%EB%B6%84%EC%84%9D%20%EB%B0%8F%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88%20%EC%97%B0%EA%B5%AC%20
[4] http://www.sdi.re.kr/taxonomy/term/18533
[5] http://www.sdi.re.kr/si_download/45612/9086
[6] http://www.sdi.re.kr/studies_on/18533