Armstrong, James W., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Denniston, Katherine J., author
McGraw-Hill, [Date of publication not identified]
Buku Teks
Seager, Spencer L., author
Thomson Brooks/Cole, 2008
Buku Teks
Frederick A. Bettelheim
Thomson, Brooks/Cole, 2007
Buku Teks
Seager, Spencer L., author
Thomson Brooks/Cole, 2008
Buku Teks