Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40554&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%BB%A8%EB%B2%A4%EC%85%98%EA%B0%9C%EC%B5%9C%EC%A7%80%20%EC%84%A0%ED%83%9D%EC%86%8D%EC%84%B1%EC%97%90%20%EB%94%B0%EB%A5%B8%20%EC%BB%A8%EB%B2%A4%EC%85%98%EB%8F%84%EC%8B%9C%20%EA%B2%BD%EC%9F%81%EB%A0%A5%20%ED%8F%89%EA%B0%80%EC%B2%99%EB%8F%84%20%EA%B0%9C%EB%B0%9C%20
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40554&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%BB%A8%EB%B2%A4%EC%85%98%EA%B0%9C%EC%B5%9C%EC%A7%80%20%EC%84%A0%ED%83%9D%EC%86%8D%EC%84%B1%EC%97%90%20%EB%94%B0%EB%A5%B8%20%EC%BB%A8%EB%B2%A4%EC%85%98%EB%8F%84%EC%8B%9C%20%EA%B2%BD%EC%9F%81%EB%A0%A5%20%ED%8F%89%EA%B0%80%EC%B2%99%EB%8F%84%20%EA%B0%9C%EB%B0%9C%20
[4] http://www.sdi.re.kr/taxonomy/term/15675
[5] http://www.sdi.re.kr/si_download/40554/6518
[6] http://www.sdi.re.kr/studies_on/15675