Clark, Charles T.
Statistical methods for business decisions / Charles T. Clark and Lawrence L. Schkade
Ohio South Western , 1969
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Djarwanto
Statistik nonparametrik
BPFE, 1997
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Haber, Audrey
General statistics
Addison-Wesley , 1971
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McClave, James T.
Statistics
Prentice-Hall, 2000
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McClave, James T.
Statistics
Dellen Publishing, 1979
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