Edward Arnold (Publishers) Ltd., 1978
Buku Teks
Routledge, 2015
Buku Teks
Clyde, Paul Hibbert, author
Prentice-Hall, 1953
Buku Teks
Jolliffe, Jill
University of Queensland, 1978
Buku Teks
Thompson, Warren S., author
The University of Chicago Press, 1959
Buku Teks