Gaya APA
The Must- Have Customer : 7 Taktik Jitu Merebut Hati Pelanggan Idaman Anda. (2007).
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
The Must- Have Customer : 7 Taktik Jitu Merebut Hati Pelanggan Idaman Anda.
.
Jakarta:
Gramedia Pustaka Utama,
2007.
Text.