Gaya APA

Kasmir, . (2017). Customer Services Excellent : Teori dan Praktik (Ed. 1. Cet. 1). Jakarta: Penerbit Rajawali Pers.

Gaya MLA

Kasmir, . "Customer Services Excellent : Teori dan Praktik". Ed. 1. Cet. 1 Jakarta: Penerbit Rajawali Pers, 2017. Text.