Keller, G., & Warrack, B. (1998). Statistics for management and economics (4th ed.). Pacific Grove, CA: Duxbury.
Trích dẫn kiểu ChicagoKeller, Gerald., và Brian Warrack. Statistics for Management and Economics. 4th ed. Pacific Grove, CA: Duxbury, 1998.
MLA CitationKeller, Gerald., và Brian Warrack. Statistics for Management and Economics. 4th ed. Pacific Grove, CA: Duxbury, 1998.
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