Foster, Thomas C.
Harper, 2003
Buku Teks
Haviland, Virginia
Scott, Foresman, 1973
Buku Teks
Pamela Paul, edited
New York Henry Holt and Company, 2014
Buku Teks
by Jacquelyn Sanders ... [and others]
The University of Chicago , 1968
Buku Teks
Hunt, Peter, 1945-
Oxford University Press, 1994
Buku Teks