Gaya APA

Rusydi, Mhd. (2017). Customer Excellence (Ed. I). Yogyakarta: Gosyen Publishing.

Gaya Chicago

Rusydi, Mhd. Customer Excellence. Ed. I Yogyakarta: Gosyen Publishing, 2017. Text.

Gaya MLA

Rusydi, Mhd. Customer Excellence. Ed. I Yogyakarta: Gosyen Publishing, 2017. Text.

Gaya Turabian

Rusydi, Mhd. Customer Excellence. Ed. I Yogyakarta: Gosyen Publishing, 2017. Print.