Gupta, S. (2018). Digital Marketing. McGraw Hill Education (India) Private Limited.
Chicago-čujuhus (17. p.)Gupta, Seema. Digital Marketing. Chennai: McGraw Hill Education (India) Private Limited, 2018.
MLA-čujuhus (9. p.)Gupta, Seema. Digital Marketing. McGraw Hill Education (India) Private Limited, 2018.
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