Wolfe, Drew
NTC Learning Works, 1996
Buku Teks
McMurry, John
Brooks/Cole, 2007
Buku Teks
Beyer, Hans
[Publisher not identified], [Date of publication not identified]
Buku Teks
Solomons, T.W. Graham
John Wiley & Sons, 1992
Buku Teks
Fessenden, Ralph J.
Wadsworth, 1979
Buku Teks