Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40878&t=%EB%8F%84%EC%8B%9C%EC%97%90%20%EB%8C%80%ED%95%9C%20%EC%9D%B8%EC%8B%9D%EC%9D%B4%20%EB%B6%80%EB%8F%99%EC%82%B0%20%EC%8B%9C%EC%9E%A5%EC%97%90%20%EB%AF%B8%EC%B9%98%EB%8A%94%20%EC%98%81%ED%96%A5
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40878&text=%EB%8F%84%EC%8B%9C%EC%97%90%20%EB%8C%80%ED%95%9C%20%EC%9D%B8%EC%8B%9D%EC%9D%B4%20%EB%B6%80%EB%8F%99%EC%82%B0%20%EC%8B%9C%EC%9E%A5%EC%97%90%20%EB%AF%B8%EC%B9%98%EB%8A%94%20%EC%98%81%ED%96%A5
[4] http://www.sdi.re.kr/taxonomy/term/15700
[5] http://www.sdi.re.kr/si_download/40878/6842
[6] http://www.sdi.re.kr/studies_on/15700