CHAFFEY, D. (2019). Digital business and e-commerce management 7th ed. Person.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCHAFFEY, Dave. Digital Business and E-commerce Management 7th Ed. Person, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCHAFFEY, Dave. Digital Business and E-commerce Management 7th Ed. Person, 2019.
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