Keosian,John
Reinhold Publishing Corporation, 1964
Buku Teks
Postlethwait, John H., author
Brooks/Cole, Thomson Learning, 2003
Buku Teks
Darwin, Charles, author
Ikon Teralitera, 2002
Buku Teks
Mayr, Ernst, author
Harvard University Press, 1999
Buku Teks
Darwin, Charles, author
Penguin Books, 1985
Buku Teks