MacDonald, Austin F., author
Thomas Y. Crowell, 1949
Buku Teks
MacDonald, Austin F., author
Thomas Y. Crowell , 1951
Buku Teks
MacCorkle, Stuart A.
D.C. Heath and Company, 1948
Buku Teks
Anderson, William, 1888-
Holt , 1954
Buku Teks
OConnor, Karen, author
Addison Wesley Longman, 2001
Buku Teks