Joel's Lab

http://blog.daum.net/_blog/BlogTypeView.do?blogid=0UgnV&articleno=2&categoryId=0&regdt=20100915202450 http://okjsp.net/seq/136222#1415306577393 http://yhcting.wordpress.com/2011/03/25/essay-%EA%B8%B0%EC%88%A0%EB%A9%B4%EC%A0%91%EC%97%90%EC%84%9C-%EC%96%B4%EB%96%A4%EC%8B%9D%EC%9D%98-%EC%A7%88%EB%AC%B8%EC%9D%84-%ED%95%B4%EC%95%BC-%ED%95%98%EB%8A%94%EA%B0%80-%EC%82%AC%EB%A1%801/ http://kumbange.tistory.com/265 http://helloworld.naver.com/helloworld/1329 http://www.comcbt.com/xe/j4/1804301

http://www.huffingtonpost.kr/2014/03/31/story_n_5057219.html 와 ㄷㄷ 쩐다아