Ritter, Peck, author
Brooks/Cole Publishing, 1996
Buku Teks
editors for the Ciba Foundation, G.E.W. Wolstenholme and Cecilia M. O'Connor
Little, Brown & Co., 1957
Buku Teks
Campbell, Mary K., author
Brooks/Cole Cengage Learning, 2008
Buku Teks
Henrickson, Charles H., author
McGraw-Hill, Higher Education, 2008
Buku Teks
Thomson and Brooks/cole, 2007
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