Snedecor, George W.
Statistical methods
Iowa State University Press, 1989
 Buku Teks
Landau, Lev D.
Statistical physics
Pergamon Press, 1980
 Buku Teks
Aitken, A.C.
STatistical mathematics
Oliver and Boyd , 1974
 Buku Teks
Snedecor, George W.
Statistical methods
The Iowa State University Press, 1980
 Buku Teks
Snedecor, George W.
Statistical methods
The Iowa State University Press, 1950
 Buku Teks