Coba jelasin Sumber sekunder dari Darwinisme sosial dong

Bannister, Robert C. Social Darwinism: Science and Myth in Anglo-American Social Thought (1989)

Bannister, Robert C. Sociology and Scientism: The American Quest for Objectivity, 1880-1940 (1987)

Bernardini, J.-M. Le darwinisme social en France (1859–1918). Fascination et rejet d'une idéologie, Paris, CNRS Edition, 1997.

Boller, Paul F. Jr. American Thought in Transition: The Impact of Evolutionary Naturalism, 1865-1900 (1969)

Crook, D. Paul. Darwinism, War and History: The Debate over the Biology of War from the 'Origin of Species' to the First World War (1994)

Crook, Paul. "Social Darwinism in European and American Thought, 1860-1945" The Australian Journal of Politics and History, Vol. 45, 1999

Crook, Paul. Darwin's Coat-Tails: Essays on Social Darwinism (Peter Lang, 2007)

Degler, Carl N. In Search of Human Nature: The Decline and Revival of Darwinism in American Social Thought (1992).

Dickens, Peter. Social Darwinism: Linking Evolutionary Thought to Social Theory (Philadelphia: Open University Press, 2000).

Gossett, Thomas F. Race: The History of an Idea in America (1999) ch 7

Hodge, Jonathan and Gregory Radick. The Cambridge Companion to Darwin (2003)

Jones, Leslie, Social Darwinism Revisited History Today, Vol. 48, August 1998

Kaye, Howard L. The Social Meaning of Modern Biology: From Social Darwinism to Sociobiology (1997).