Gaya APA
Service, Quality dan Satisfaction. (2016).
Yogyakarta:
Andi.
Gaya Chicago
Service, Quality dan Satisfaction.
4.
Yogyakarta:
Andi,
2016.
Buku.
Gaya MLA
Service, Quality dan Satisfaction.
4.
Yogyakarta:
Andi,
2016.
Buku.
Gaya Turabian
Service, Quality dan Satisfaction.
Yogyakarta:
Andi,
2016.
Buku.