Radlow, James, author
McGraw-Hill, 1986
Buku Teks
Altschuler, Bruce E., author
Prentice-Hall, 1996
Buku Teks
Bell, Robert R.
Prentice Hall Inc., 1966
Buku Teks
Friedmann, Wolfgang, 1907-1972, author
Penguin Books, 1972
Buku Teks
edited by Hendry W. Ehrmann
Vakils, Fiffer and Simons, 1963
Buku Teks