Mengenai Karl Marx: Hal Draper, Karl Marx's Theory of Revolution, Volume 1: State and Bureaucracy (Hal Draper, Teori Revolusi Karl Marx, Jilid 1: Negara dan Birokrasi). New York: Percetakan Monthly Review, 1979.
Mengenai Weber: Watson, Tony J. (1980). Sociology, Work and Industry (Sosiologi, Pekerjaan, dan Industri). Routledge. ISBN 0-415-32165-4.
