Sing , A. (2000). Creating Customer - driven quality. Excel Book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSing , Akhilesh. Creating Customer - Driven Quality. New Delhi]: Excel Book, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSing , Akhilesh. Creating Customer - Driven Quality. Excel Book, 2000.
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