1- Barash , D. (1977) , sociology and behavior , New York : Elsevier
2- Ellis , L. and A , Walsh (2000) , Criminology : A Global Perspective , Boston : Allyn and Bacon
3- Hamilton , W. (1996), The genetical evolution of social behavior in : Hamilton (Ed.), Narrow roads of gene land, New York : Freeman / Spektrum
4- Harrison , L.E. (and S.H. Huntington (2000) , culture matters , New York : basic books.
5- Lorenz , K. (1996) , on aggression , New York : Harcourt brace Jovanovich.
6- Nisbet , R. (1982) , Prejudices : A philosophical dictionary , Cambridge , Mass. : Harvard university press.
7- Pinker , S. (1997) , how the mind works : New York : Norton
8- Somit, A. and S,A, Peterson (2003) , Human nature and public policy : An evolutionary approach , polgrave Mcmillan.
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