Pritchett, C. Herman
McGraw-Hill, 1981
Buku Teks
Fisher, Louis
McGraw-Hill, 1988
Buku Teks
Fairman, Charles
Henry Holt and Company, 1948
Buku Teks
Wright, Benjamin F.
Phoenik Books, 1967
Buku Teks
Schawartz, Bernard
At The University Press, 1955
Buku Teks