Life on earth
by Edwad O. Wilson ... [et.al.]
Sinauer Associates, 1973
 Buku Teks
Jones, H. Spencer
Life on other worlds
Macmillan, 1956
 Buku Teks
Halley, J. Woods
How likely is extraterrestrial life?
[Springer, ], 2012
 eBooks
Dick, Steven J.
The biological universe: the twentieth-century extraterrestrial life debate and the limits of science
Cambridge University Press, 1996
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Clancy, Paul
Looking for life, searching the solar system
Cambridge University Press, 2005
 Buku Teks