Northover, John M.A.
Oxford University Press, 1992
Buku Teks
Langone, John
Brown , 1991
Buku Teks
Davies, Robert J., author
Oxford University Press, 1989
Buku Teks
Lockley, John
Bloomsbury , 1993
Buku Teks
Avise, John C.
Serambi Ilmu Semesta, 2007
Buku Teks