Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F38554&t=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%83%81%EC%88%98%EB%8F%84%EC%82%AC%EC%97%85%20%EC%98%88%EC%82%B0%EA%B3%BC%EB%AA%A9%EA%B5%AC%EC%A1%B0%EC%9D%98%20%EB%AC%B8%EC%A0%9C%EC%A0%90%EA%B3%BC%20%EA%B0%9C%EC%84%A0%20%EB%B0%A9%EC%95%88
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F38554&text=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EC%83%81%EC%88%98%EB%8F%84%EC%82%AC%EC%97%85%20%EC%98%88%EC%82%B0%EA%B3%BC%EB%AA%A9%EA%B5%AC%EC%A1%B0%EC%9D%98%20%EB%AC%B8%EC%A0%9C%EC%A0%90%EA%B3%BC%20%EA%B0%9C%EC%84%A0%20%EB%B0%A9%EC%95%88
[4] http://www.sdi.re.kr/taxonomy/term/15652
[5] http://www.sdi.re.kr/si_download/38554/6244
[6] http://www.sdi.re.kr/studies_on/15652