Kratovil, Robert, author
Prentice-Hall, 1974
Buku Teks
Bergfield, Philip B., author
McGraw-Hill, c1979
Buku Teks
Bruce, Jon W., author
West Publishing, 1991
Buku Teks
Nelson, Grant S., author
West Publishing, 1994
Buku Teks
Shenkel, William M., author
McGraw-Hill, 1980
Buku Teks