Mathematical Association of America, 1992
Buku Teks
Anderson, Theodore R.
Holt, Rinehart, 1968
Buku Teks
Wasserman, Larry, author
Springer, 2010
Buku Teks
Mosteller, Frederick, author
Addison-Wesley, 1977
Buku Teks
Bajpai, A.C., author
John Wiley & Sons, 1982
Buku Teks