Gaya APA
Hopkins, T. (2004).
How to master the art of selling = Menjual secara profesional (Cet. 3).
Semarang:
dahara prize.
Gaya MLA
Hopkins, Tom.
"How to master the art of selling = Menjual secara profesional".
Cet. 3
Semarang:
dahara prize,
2004.
Text.