Wetzell, A.D., author
McGraw-Hill, 1981
Buku Teks
Coleman, Rodney, author
George Allen & Unwin, 1974
Buku Teks
Parzen, Emanuel, 1929- , author
Society for Industrial and Applied Mathematics, 1999
eBooks
Assefi, Touraj, 1941-, author
John Wiley & Sons, 1979
Buku Teks
Ash, Robert B., author
Academic Press, 1975
Buku Teks