Keller, G. (2018). Statistics for management and economics (Eleventh edition.). Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKeller, Gerald. Statistics for Management and Economics. Eleventh edition. Boston, MA, USA: Cengage Learning, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKeller, Gerald. Statistics for Management and Economics. Eleventh edition. Cengage Learning, 2018.
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