1David Leonhardt. As Prison Labor Grows, So Does the Debate, published on Sunday, March 19, 2000 in the New York Times (http://www.commondreams.org/headfines/031900-02.htm).
2《圣经》(简化字现代标点和合本)新约,中国基督教两会发行,2000年10月,第337页.
3G. I. Evchenko. Formation of a communist attitude toward labor in the collective(在集体中形成共产主义劳动态度),Metallurgist, Volume 23, Number 3(《冶金学家》期刊,1979年3月出版,Springer,New York(施普林格出版社·纽约).