Cooper, Wendy, author
Hutchinson , 1975
Buku Teks
Wilson, Josephine F., author
Tomson Wadsworth, 2003
Buku Teks
Kalthoff, Klaus, author
McGraw-HIll, 2001
Buku Teks
Truskey, George A., author
Pearson/Prentice Hall, 2004
Buku Teks
Baum, Stuart J., author
Macmillan, 1993
Buku Teks