Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40351&t=%EB%B2%A4%EC%B2%98%ED%88%AC%EC%9E%90%20%ED%99%9C%EC%84%B1%ED%99%94%EB%A5%BC%20%EC%9C%84%ED%95%9C%20%EB%B2%A4%EC%B2%98%EA%B8%B0%EC%97%85%20%ED%8F%89%EA%B0%80%EC%9D%98%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40351&text=%EB%B2%A4%EC%B2%98%ED%88%AC%EC%9E%90%20%ED%99%9C%EC%84%B1%ED%99%94%EB%A5%BC%20%EC%9C%84%ED%95%9C%20%EB%B2%A4%EC%B2%98%EA%B8%B0%EC%97%85%20%ED%8F%89%EA%B0%80%EC%9D%98%20%EA%B0%9C%EC%84%A0%EB%B0%A9%EC%95%88
[4] http://www.sdi.re.kr/taxonomy/term/1806
[5] http://www.sdi.re.kr/si_download/40351/6320
[6] http://www.sdi.re.kr/studies_on/1806