Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40535&t=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%8B%A0%EC%A0%95%EC%B9%98%EB%AC%B8%ED%99%94%28NPC%29%EC%99%80%20%EB%8B%A8%EC%B2%B4%EC%9E%A5%EC%9D%98%20%EC%8B%A0%EC%A0%95%EC%B9%98%EB%AC%B8%ED%99%94%28NPC%29%EC%A0%81%20%EC%84%B1%ED%96%A5%EB%B6%84%EC%84%9D
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40535&text=%5B%EB%85%BC%EB%AC%B8%5D%20%EC%8B%A0%EC%A0%95%EC%B9%98%EB%AC%B8%ED%99%94%28NPC%29%EC%99%80%20%EB%8B%A8%EC%B2%B4%EC%9E%A5%EC%9D%98%20%EC%8B%A0%EC%A0%95%EC%B9%98%EB%AC%B8%ED%99%94%28NPC%29%EC%A0%81%20%EC%84%B1%ED%96%A5%EB%B6%84%EC%84%9D
[4] http://www.sdi.re.kr/taxonomy/term/15673
[5] http://www.sdi.re.kr/si_download/40535/6499
[6] http://www.sdi.re.kr/studies_on/15673