Nigam, S. (2005). Total quality management: An integrated approach. Excel Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNigam, Shailendra. Total Quality Management: An Integrated Approach. New Delhi: Excel Books, 2005.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNigam, Shailendra. Total Quality Management: An Integrated Approach. Excel Books, 2005.
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