Anderson, Alan J.B.
Chapman and Hall , 1989
Buku Teks
Cressie, Noel A. C.
John Wiley & Sons, 1993
Buku Teks
Mosteller, Frederick, author
Addison Wesley Publ., 1983
Buku Teks
Pearson Education, 2009
Multimedia
Devore, Jay L..
Duxbury Press, 1995
Buku Teks