Ruse, Michael
The philosophy of human evolution
Cambridge University Press, 2012
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Portmann, Adolf
A zoologist looks at humankind
Columbia University Press, 1990
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Evolutionary thought in America
edited by Stow Persons
Yale University Press, 1950
 Buku Teks SO
Kymlicka, Will
Multicultural Citizenship a liberal theory of minority rights / Will Kymlicka.
OxfordClarendon Press, 1995
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Orgad, Liav
The cultural defense of nations : a liberal theory of majority rights
Oxford University Press, 2015
 Buku Teks SO