Gaya APA
Haryono, P, B.
(2016).
How to Win Costomer Through Customer Service with Heart
.
Yogyakarta:
Penerbit Andi.
Gaya MLA
Haryono, PM., Budi.
"How to Win Costomer Through Customer Service with Heart".
Yogyakarta:
Penerbit Andi,
2016.
Text.