Gaya APA
al., E. et al (2002).
Romancing The Customer: Memaksimalkan Nilai Merek Melalui Relationship Management .
Jakarta:
Salemba Empat.
Gaya MLA
al., Et. et al.
"Romancing The Customer: Memaksimalkan Nilai Merek Melalui Relationship Management".
Jakarta:
Salemba Empat,
2002.
Text.