Gaya APA
Nikolay, H.
(2016).
Selling Easily And Smartly
(
Cet. 5)
.
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Nikolay, Hingdranata.
"Selling Easily And Smartly".
Cet. 5
Jakarta:
Gramedia Pustaka Utama,
2016.
Text.