Beckenbach, Edwin F., author
Wadsworth, 1968
Buku Teks
Vance, Elbridge P., author
Addison-Wesley, 1962
Buku Teks
Moore, John T., author
Macmillan, 1969
Buku Teks
Paul, Richard S., author
Reston Publishing, 1983
Buku Teks
Dwyer, David, author
Brooks/Cole, 2000
Buku Teks