Sugandhi, R. (2008). Customer relationship management.
Chicago-čujuhus (17. p.)Sugandhi, R.K. Customer Relationship Management. New Delhi, 2008.
MLA-čujuhus (9. p.)Sugandhi, R.K. Customer Relationship Management. 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.