Caramani, Daniele
The nationalization of politics: the formation of national electorates and party systems in western europe
Camberidge University Press , 2004
 Buku Teks SO
Social issues and party politics
edited by Helen Jones and Susane Macgregor
Routledge, 1998
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Bone, Hugh A.
American politics and the party system
McGraw-Hill, 1965
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Jupp, James
Australia party politics
London Melbourne University Press 1964
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Burns, James McGregor
Four-party politics in America
Prentice-Hall, 1963
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