Gaya APA

Windasuri, H. et al (2017). Excellent Service : The Secrets of Building a Service Organization (Cetakan Pertama). Hoboken, NJ: PT Gramedia Pustaka Utama.

Gaya MLA

Windasuri, Heria. et al. "Excellent Service : The Secrets of Building a Service Organization". Cetakan Pertama Hoboken, NJ: PT Gramedia Pustaka Utama, 2017. Text.