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
Marcus, Marvin, author
Houghton Mifflin, 1970
Buku Teks
Cameron, Edward A., author
Holt, Rinehart and Winston, 1965
Buku Teks