Gaya APA
Kasmir, .
(2011).
ETIKA CUSTOMER SERVICE
(
Ed. 1, Cet. 4)
.
Jakarta:
Rajawali Pers.
Gaya MLA
Kasmir, .
"ETIKA CUSTOMER SERVICE".
Ed. 1, Cet. 4
Jakarta:
Rajawali Pers,
2011.
Book-PS.