Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40876&t=%ED%8A%B9%EB%B3%84%E2%80%A4%EA%B4%91%EC%97%AD%EC%8B%9C%EB%B3%84%20%EC%A1%B0%EC%A0%95%EA%B5%90%EB%B6%80%EA%B8%88%EC%A0%9C%EB%8F%84%20%EB%B9%84%EA%B5%90%20%EB%B6%84%EC%84%9D%20%EB%B0%8F%20%EC%A0%81%ED%95%A9%EC%84%B1%20%ED%8F%89%EA%B0%80
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40876&text=%ED%8A%B9%EB%B3%84%E2%80%A4%EA%B4%91%EC%97%AD%EC%8B%9C%EB%B3%84%20%EC%A1%B0%EC%A0%95%EA%B5%90%EB%B6%80%EA%B8%88%EC%A0%9C%EB%8F%84%20%EB%B9%84%EA%B5%90%20%EB%B6%84%EC%84%9D%20%EB%B0%8F%20%EC%A0%81%ED%95%A9%EC%84%B1%20%ED%8F%89%EA%B0%80
[4] http://www.sdi.re.kr/taxonomy/term/15700
[5] http://www.sdi.re.kr/si_download/40876/6840
[6] http://www.sdi.re.kr/studies_on/15700