Studies in the theory of imperialism
edited by Roger Owen & Bob Sutcliffe
Longman, 1972
 Buku Teks SO
Centers, Richard
The Psychology of social classes: a study of class consciousnes
Routledge/Thoemmes Press, 1949
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Roman imperialism : readings and sources
Blackwell Publishing, 2004
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Moon, Parker Thomas
Imperialism and world politics
Macmillan, 1953
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Moon, Parker Thomas
Imperialism and world politics
Macmillan, 1947
 Buku Teks SO