Gaya APA

Sales Insight (Spirit, Strategy, Service). (2017). Jakarta: PT Gramedia Pustaka Utama.

Gaya Chicago

Sales Insight (Spirit, Strategy, Service). . Jakarta: PT Gramedia Pustaka Utama, 2017. Buku.

Gaya MLA

Sales Insight (Spirit, Strategy, Service). . Jakarta: PT Gramedia Pustaka Utama, 2017. Buku.

Gaya Turabian

Sales Insight (Spirit, Strategy, Service). Jakarta: PT Gramedia Pustaka Utama, 2017. Buku.