Gaya APA
Altschuler, M. (2016).
Hacking Sales: The Playbook for Building a High-Velocity Sales Machine .
New York, United States:
Wiley Eastern Limited.
Gaya MLA
Altschuler, Max.
"Hacking Sales: The Playbook for Building a High-Velocity Sales Machine".
New York, United States:
Wiley Eastern Limited,
2016.
Buku.