GRIFFIN JILL. (2002). CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS.
Chicago-čujuhus (17. p.)GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. SAN FRANCISCO: JOSSEY-BASS PUBLICATIONS, 2002.
MLA-čujuhus (9. p.)GRIFFIN JILL. CUSTOMER LOYALTY: HOW TO EARN IT, HOW TO KEEP IT. JOSSEY-BASS PUBLICATIONS, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.