Palmer, A. (2009). The Business environment sixth edition. McGraw-Hill Higher Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPalmer, Adrian. The Business Environment Sixth Edition. McGraw-Hill Higher Education, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPalmer, Adrian. The Business Environment Sixth Edition. McGraw-Hill Higher Education, 2009.
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