Pigou, Arthur Cecil, 1877-1959
Socialism versus capitalism
Macmillan, 1958
 Buku Teks
Ebenstein, William
Today's isms: communism, fascism, capitalism, socialism
Prentice-Hall, 1954
 Buku Teks SO
Rosenberg, Arthur
Democracy and socalism; a contribution to the political history of the past 150 years
A.A. Knopf, 1939
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Cammack, Paul Anthony
Capitalism and democracy in the Third World the doctrine for political development
Leicester University Press, 1997
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Shi Biqiu
Democracy
China Renmin University Press, 2015
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