Sheth, J. N. (2019). Customer relationship management. McGraw Hill, New Delhi.
Chicago-čujuhus (17. p.)Sheth, Jagdish N. Customer Relationship Management. McGraw Hill, New Delhi, 2019.
MLA-čujuhus (9. p.)Sheth, Jagdish N. Customer Relationship Management. McGraw Hill, New Delhi, 2019.
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