Kaniss, Phyllis
The University of Chicago Press , 1991
Buku Teks
Bryant, Jennings
McGraw-Hill, 2002
Buku Teks
Simmons, Robert E
Longmann, 1990
Buku Teks
Alison Alexander, Jarice Hanson, editor
McGraw-Hill/Dushkin, 2001
Buku Teks
[compiled by] Warren K. Agee, Phillip H. Ault, Edwin Emery
Harper & Row Publishers, 1986
Buku Teks