Gaya APA
Storbacka, K., Lehtinen, J, R. (2001).
Customer Relationship Management; Creating Competitive Advantages Win-Win Relationship Strategies .
Singapore:
McGraw-Hill.
Gaya MLA
Storbacka, Kaj., Lehtinen, Jarmo, R..
"Customer Relationship Management; Creating Competitive Advantages Win-Win Relationship Strategies".
Singapore:
McGraw-Hill,
2001.
Textbook.