Scarre, Christopher (ed.) (1988). Past Worlds: The Times Atlas of Archaeology. London: Times Books. ISBN 0-7230-0306-8. Selenggaraan CS1: Extra text: senarai pengarang (link)
Schick, Kathy D. (1993). Making Silent Stones Speak: Human Evolution and the Dawn of Technology. New York: Simon & Schuster. ISBN 0-671-69371-9. Parameter |coauthors= tidak diketahui diabaikan (guna |author=) (bantuan)
