Haber, Audrey
General statistics
Addison-Wesley , 1971
 Buku Teks
Croxton, Frederick E.
Applied general statistics
Prentice-Hal, 1967
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Croxton, Frederick E.
Applied general statistics
Prentice-Hall, 1960
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McClave, James T.
Statistics
Dellen Publishing, 1979
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Hays, William Lee, 1926-1995
Statistics
Harcourt Brace Colege, 1994
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