Bacon, Harold M., author
McGraw-Hill, 1955
Buku Teks
Legros, Roger
Prentice-Hall, 1961
Buku Teks
Ayres, Frank, 1901-1994, author
McGraw-Hill, 1981
Buku Teks
Lanczos, Cornelius, 1893- , author
Society for Industrial and Applied Mathematics, 1996
eBooks
Bruckner, Andrew M.
American Mathematical Society, 1994
Buku Teks