Weiner, Susan A., author
Thomson, Brooks/Cole, 2005
Buku Teks
Ochiai, Ei-Ichiro, author
Macmillan Press, 1979
Buku Teks
Slowinski
Harcourt Brace Custom, 1996
Buku Teks
Hearn, Leo C., author
Lewis, 1991
Buku Teks
Nelson, John H.
Prentice-Hall, 1997
Buku Teks