Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40832&t=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EB%8B%A8%EB%8F%85%EC%A3%BC%ED%83%9D%20%EA%B3%B5%EA%B0%84%EB%B6%84%ED%8F%AC%20%EC%97%B0%EA%B5%AC%281970~2009%29
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40832&text=%EC%84%9C%EC%9A%B8%EC%8B%9C%20%EB%8B%A8%EB%8F%85%EC%A3%BC%ED%83%9D%20%EA%B3%B5%EA%B0%84%EB%B6%84%ED%8F%AC%20%EC%97%B0%EA%B5%AC%281970~2009%29
[4] http://www.sdi.re.kr/taxonomy/term/15696
[5] http://www.sdi.re.kr/si_download/40832/6796
[6] http://www.sdi.re.kr/taxonomy/term/16651
[7] http://www.sdi.re.kr/taxonomy/term/17356
[8] http://www.sdi.re.kr/taxonomy/term/17357
[9] http://www.sdi.re.kr/studies_on/15696