Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40356&t=%EB%B3%B4%EC%A1%B0%EA%B8%88%EC%A0%9C%EB%8F%84%EB%A5%BC%20%ED%99%9C%EC%9A%A9%ED%95%9C%20%EA%B4%91%EC%97%AD%ED%96%89%EC%A0%95%20%ED%99%95%EB%8C%80%EB%B0%A9%EC%95%88%20%EC%9C%A0%EB%8F%84
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40356&text=%EB%B3%B4%EC%A1%B0%EA%B8%88%EC%A0%9C%EB%8F%84%EB%A5%BC%20%ED%99%9C%EC%9A%A9%ED%95%9C%20%EA%B4%91%EC%97%AD%ED%96%89%EC%A0%95%20%ED%99%95%EB%8C%80%EB%B0%A9%EC%95%88%20%EC%9C%A0%EB%8F%84
[4] http://www.sdi.re.kr/taxonomy/term/15655
[5] http://www.sdi.re.kr/si_download/40356/6325
[6] http://www.sdi.re.kr/studies_on/15655