Griswold, Alice L., author
Holt, Rinehart and Winston, 1961
Buku Teks
Gager, William A., author
Macmillan, 1968
Buku Teks
Dwyer, David, author
Brooks/Cole, 2000
Buku Teks
Hungerford, Thomas W., author
Brooks/Cole, 2005
Multimedia
Hungerford, Thomas W., author
Thomson and Brooks/cole, 2005
Multimedia