Gaya APA
Whistman, J. (2016).
The sales boss : the real secret to hiring, training and managing a sales team .
Amerika:
John Wiley \r Son.
Gaya MLA
Whistman, Jonathan,.
"The sales boss : the real secret to hiring, training and managing a sales team".
Amerika:
John Wiley \r Son,
2016.
Buku.