APA Style

Rusydi, Mhd. (2017). Customer Excellence (1). Yogyakarta: Gosyen Publishing.

Chicago Style

Rusydi, Mhd. Customer Excellence. 1 Yogyakarta: Gosyen Publishing, 2017. Text.

MLA Style

Rusydi, Mhd. Customer Excellence. 1 Yogyakarta: Gosyen Publishing, 2017. Text.

Turabian Style

Rusydi, Mhd. Customer Excellence. 1 Yogyakarta: Gosyen Publishing, 2017. Print.