Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Andreas Persson and Lynette Ryals,Customer assets and customer equity: Management and measurement issues,Marketing Theory,1470-5931,SAGE Publications,2010-12,10,4,417-436,https://cir.nii.ac.jp/crid/1360011143614198272,https://doi.org/10.1177/1470593110382828