APA Style
Haryono, PM. Budi. (2018).
How to be professional customer service .
Yogyakarta:
Andi.
Chicago Style
Haryono, PM. Budi.
How to be professional customer service.
Yogyakarta:
Andi,
2018.
Book.
MLA Style
Haryono, PM. Budi.
How to be professional customer service.
Yogyakarta:
Andi,
2018.
Book.
Turabian Style
Haryono, PM. Budi.
How to be professional customer service.
Yogyakarta:
Andi,
2018.
Book.