Gaya APA
Putra, J, E., Hermawan, A. (2013).
The Secret of Wealth Creation: How to Create Your Wealth From Nothing .
Surabaya:
MIC Publishing.
Gaya MLA
Putra, Julianto, Eka., Hermawan, Aga.
"The Secret of Wealth Creation: How to Create Your Wealth From Nothing".
Surabaya:
MIC Publishing,
2013.
Text.