Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40396&t=%5B%EC%97%B0%EA%B5%AC%EB%85%B8%ED%8A%B8%5D%20%EB%8C%80%EC%A4%91%EA%B5%90%ED%86%B5%20%ED%86%B5%ED%95%A9%EC%9A%B4%EC%98%81%EC%B2%B4%EA%B3%84%20%EA%B5%AC%EC%B6%95%EC%9D%98%20%EC%A0%84%EC%A0%9C%20%EA%B2%80%ED%86%A0
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40396&text=%5B%EC%97%B0%EA%B5%AC%EB%85%B8%ED%8A%B8%5D%20%EB%8C%80%EC%A4%91%EA%B5%90%ED%86%B5%20%ED%86%B5%ED%95%A9%EC%9A%B4%EC%98%81%EC%B2%B4%EA%B3%84%20%EA%B5%AC%EC%B6%95%EC%9D%98%20%EC%A0%84%EC%A0%9C%20%EA%B2%80%ED%86%A0
[4] http://www.sdi.re.kr/taxonomy/term/15660
[5] http://www.sdi.re.kr/si_download/40396/6364
[6] http://www.sdi.re.kr/studies_on/15660