Karson, Marvin J.
Multivariate statistical methods: an introduction
Iowa State University Press, 1982
 Buku Teks SO
Ott, Lyman
An introduction to statistical methods and data analysis
Duxbury Press, 1993
 Buku Teks
Snedecor, George W.
Statistical methods
The Iowa State University Press, 1950
 Buku Teks SO
Snedecor, George W.
Statistical methods
Iowa State University Press, 1989
 Buku Teks SO
Snedecor, George W.
Statistical methods
The Iowa State University Press, 1982
 Buku Teks SO