Gaya APA
Putra, R., S. (2008).
Berani menulis berani kaya : 101 writing businesses you can strart from home .
Surabaya:
Brilliant.
Gaya MLA
Putra, R., S..
Berani menulis berani kaya : 101 writing businesses you can strart from home.
Surabaya:
Brilliant,
2008.
Text.