Gaya APA
DR, B, H, P, P.
(2016).
How To Win Customer Through Customer Service With Heart
.
Yogyakarta:
Andi.
Gaya MLA
DR, Budi, Haryono,, PM,, Prof.
"How To Win Customer Through Customer Service With Heart".
Yogyakarta:
Andi,
2016.
Computer File.