Peelen, E. (2005). Customer relationship management. Pearson.
Chicago-čujuhus (17. p.)Peelen, Ed. Customer Relationship Management. New Delhi: Pearson, 2005.
MLA-čujuhus (9. p.)Peelen, Ed. Customer Relationship Management. Pearson, 2005.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.