Howells, William D., author
Mankind in the making : the story of human evolution / William Howells
Doubleday & Company, 1967
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Encyclopedia of human evolution and prehistory
Eric Delson, Ian Tattersall, John A. Van Couvering, Alison S. Brokks,editor
Garland Publishing, 2000
 Buku Referensi
Ulijaszek, Stanley J., author
Evolving human nutrition : implications for public health
Cambridge University Press, 2012
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Coon, Carleton S.
The origin of races / Carleton S. Coon
Knopf, 1962
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Wendt, Herbert, author
In search of Adam : the story of man's quest for the truth about his earliest ancestors = Ich suchte Adam
Houghton-Mifflin, 1956
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