Gaya APA

M.M, D, K, S. (2017). Customer Services Excellent : Teori dan Praktik (Ed. 1, --Cet. 1). Jakarta: Rajawali Pers.

Gaya MLA

M.M, Dr., Kasmir,, S.E.,. "Customer Services Excellent : Teori dan Praktik". Ed. 1, --Cet. 1 Jakarta: Rajawali Pers, 2017. Text.