Gaya APA

Kartajaya, H., Purwanti, D. (2016). Grow Tour Sales! Wow Your Service! (-). Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Kartajaya, Hermawan., Purwanti, Dewi. "Grow Tour Sales! Wow Your Service!". - Jakarta: PT Gramedia Pustaka Utama, 2016. Text.