Back, Kurt W.
John Wiley & Sons, 1977
Buku Teks
Hogg, Michael A., 1954-, author
London, 1988
Buku Teks
Williams, David, author
John Wiley & Sons, 1979
Buku Teks
Parzen, Emanuel, 1929- , author
Society for Industrial and Applied Mathematics, 1999
eBooks
Coleman, Rodney, author
George Allen & Unwin, 1974
Buku Teks