Gaya APA
Yusuf, S. (2012).
How to Sell Your Way Through Life: Rahasia sukses menjual ala Napoleon Hill .
Jakarta:
PT Gramedia.
Gaya MLA
Yusuf, Sugianto.
"How to Sell Your Way Through Life: Rahasia sukses menjual ala Napoleon Hill".
Jakarta:
PT Gramedia,
2012.
Teks.