Hicks, Ursula K., author
Clarendon Press, 1961
Buku Teks
Larcombe, Frederick Arthur, author
Sydney University Press, 1973
Buku Teks
Haynes, Robert J.
George Allen and Unwin, 1980
Buku Teks
Kaniss, Phyllis, author
The University of Chicago Press , 1991
Buku Teks
Gelfand, M. David, author
West Publishing, 1986
Buku Teks