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
Rosenberg, Arthur
Democracy and socalism; a contribution to the political history of the past 150 years
A.A. Knopf, 1939
 Buku Teks
Cammack, Paul Anthony
Capitalism and democracy in the Third World the doctrine for political development
Leicester University Press, 1997
 Buku Teks
Shi Biqiu
Democracy
China Renmin University Press, 2015
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