Torgersen, Erik
Cambridge University Press, 1990
Buku Teks
Agostino Di Ciaccio, editor
[, Springer-Verlag ], 2012
eBooks
Rendall, F. J., author
McGraw-Hill, 1983
Buku Teks
Chernoff, Herman
John Wiley & Sons, 1959
Buku Teks
Snedecor, George W., author
The Iowa State University Press, 1964
Buku Teks