Gaya APA
Sales, N. (2017).
Naked Sales : Seel the Problem you Solve, Not the Product .
Hoboken, NJ:
PT Elex Media Komputindo.
Gaya MLA
Sales, Naked.
"Naked Sales : Seel the Problem you Solve, Not the Product".
Hoboken, NJ:
PT Elex Media Komputindo,
2017.
Text.