Gaya APA

Haryono. (2013). How to manage costumer voice (1). Yogyakarta: Andi.

Gaya Chicago

Haryono. How to manage costumer voice. 1 Yogyakarta: Andi, 2013. Text.

Gaya MLA

Haryono. How to manage costumer voice. 1 Yogyakarta: Andi, 2013. Text.

Gaya Turabian

Haryono. How to manage costumer voice. 1 Yogyakarta: Andi, 2013. Print.