Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F61754&t=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EA%B3%A8%EB%AA%A9%EC%83%81%EA%B6%8C%20%EB%A7%A4%EC%B6%9C%EC%95%A1%EC%97%90%20%EC%98%81%ED%96%A5%EC%9D%84%20%EB%AF%B8%EC%B9%98%EB%8A%94%20%EC%9A%94%EC%9D%B8%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F61754&text=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EA%B3%A8%EB%AA%A9%EC%83%81%EA%B6%8C%20%EB%A7%A4%EC%B6%9C%EC%95%A1%EC%97%90%20%EC%98%81%ED%96%A5%EC%9D%84%20%EB%AF%B8%EC%B9%98%EB%8A%94%20%EC%9A%94%EC%9D%B8%EC%97%90%20%EA%B4%80%ED%95%9C%20%EC%97%B0%EA%B5%AC
[4] http://www.sdi.re.kr/taxonomy/term/23634
[5] http://www.sdi.re.kr/si_download/61754/24306
[6] http://www.sdi.re.kr/studies_on/23634