edited by Edward C. Bursk and John F. Chapman
New American Library, 1964
Buku Teks
Rachman, David J., author
Dryden Press, 1980
Buku Teks
Kelley, Eugene J.
Prentice-Hall, 1965
Buku Teks
Thorelli, H.B., author
Penguin Books, 1973
Buku Teks
Markin, Rom J., author
John Wiley & Sons, 1982
Buku Teks