Zikmund & Babin & Others. (2014). Business Research Methods (8 th.). Cengage Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZikmund & Babin & Others. Business Research Methods. 8 th. Andover: Cengage Learning, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZikmund & Babin & Others. Business Research Methods. 8 th. Cengage Learning, 2014.
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