Gaya APA

YENTI/2017010462124, P, Y, F., Blattberg, R, G. (2001). Customer Equity : Buliding Relationships as Valuable Assets (1). USA: Nusamedia.

Gaya MLA

YENTI/2017010462124, PRIMA, YUDDY, FEBRIDA., Blattberg, Robert, G.. "Customer Equity : Buliding Relationships as Valuable Assets". 1 USA: Nusamedia, 2001. Text.