Gaya APA
Ferriss, Timothy. (2008).
The 4-Hours Workweek (Cet.1).
Jakarta:
OnRead-Books.
Gaya Chicago
Ferriss, Timothy.
The 4-Hours Workweek.
Cet.1
Jakarta:
OnRead-Books,
2008.
Text.
Gaya MLA
Ferriss, Timothy.
The 4-Hours Workweek.
Cet.1
Jakarta:
OnRead-Books,
2008.
Text.
Gaya Turabian
Ferriss, Timothy.
The 4-Hours Workweek.
Cet.1
Jakarta:
OnRead-Books,
2008.
Print.