Skidmore, Thomas E.
Politics in Brazil, 1930-1964 : an experiment in democracy
Oxford University press, 2007
 Buku Teks SO
Solomos, John
Race, politics and social change
Routledge, 1995
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Rabushka, Alvin
Race and politics in urban Malaya
Hoover Institution, 1973
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Benedict, Ruth
Race : science and politics
Viking Press, 1947
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Race & class : the journal of the Institute of race relations and the transnational Institute
London : Institute of Race Ralations
 Majalah, Jurnal, Buletin