Gaya APA
Kasmir, .
(2018).
Customer services excellent teori dan praktik
(
Ed.1 Cet.1)
.
Depok:
Rajawali Pers.
Gaya MLA
Kasmir, .
"Customer services excellent teori dan praktik".
Ed.1 Cet.1
Depok:
Rajawali Pers,
2018.
Text.