Vance, Elbridge P., author
Addison-Wesley, 1962
Buku Teks
Moore, John T., author
Macmillan, 1969
Buku Teks
Beckenbach, Edwin F., author
Wadsworth, 1968
Buku Teks
Larson, Ron, 1941-, author
D.C. Health, 1989
Buku Teks
Young, Cynthia Y., author
John Wiley & Sons, Inc, 2007
Buku Teks