Gaya APA
Nikolay. (2015).
Selling easily and smartly .
Jakarta:
Gramedia Pustaka Utama.
Gaya Chicago
Nikolay.
Selling easily and smartly.
Jakarta:
Gramedia Pustaka Utama,
2015.
Text.
Gaya MLA
Nikolay.
Selling easily and smartly.
Jakarta:
Gramedia Pustaka Utama,
2015.
Text.
Gaya Turabian
Nikolay.
Selling easily and smartly.
Jakarta:
Gramedia Pustaka Utama,
2015.
Print.