Gaya APA
Kasmir, .
(2017).
Customer services excellent : teori dan praktik
(
Ed. I, cet. 1)
.
Jakarta:
Rajawali Pers.
Gaya MLA
Kasmir, .
"Customer services excellent : teori dan praktik".
Ed. I, cet. 1
Jakarta:
Rajawali Pers,
2017.
Text.