McMurry, John, author
Brooks/Cole, 2007
Buku Teks
Roberts, John D.
W.A. Benjamin , 1977
Buku Teks
Beyer, Hans, author
[Publisher not identified], [Date of publication not identified]
Buku Teks
Solomons, T. W. Graham, author
John Wiley & Sons, 1992
Buku Teks
Fessenden, Ralph J., author
Wadsworth, 1979
Buku Teks