Gaya APA
Kasmir, .
(2018).
Customer Services Excellent : Teori dan Praktik
(
Ed.1, Cet.2)
.
Depok:
Rajawali Pers.
Gaya MLA
Kasmir, .
"Customer Services Excellent : Teori dan Praktik".
Ed.1, Cet.2
Depok:
Rajawali Pers,
2018.
Text.