Kohler, H. (2002). Statistics for business and economics: Microsoft Excel enhanced. Singapore: South-Western/Thomson Learning.
Chicago-tyylinen lähdeviittausKohler, Heinz. Statistics for Business and Economics: Microsoft Excel Enhanced. Singapore: South-Western/Thomson Learning, 2002.
MLA-viiteKohler, Heinz. Statistics for Business and Economics: Microsoft Excel Enhanced. Singapore: South-Western/Thomson Learning, 2002.
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