Dobelstein, Andrew W., author
Wadsworth, 2003
Buku Teks
Jansson, Bruce S., author
Brooks/Cole; cengage learning, 2009
Buku Teks
Dubois, Brenda, 1949-, author
Allyn and Boston, 1992
Buku Teks
Winters, Wendy Glasgow
The Free Press, 1983
Buku Teks
Loewenberg, Frank M.
F E Peacock, 1972
Buku Teks