Gaya APA
Rick, W. (2004).
The Purpose-Driven Life : what on earth am I here for? (Trawas) .
Singapore:
Zondervan / IM Print.
Gaya MLA
Rick, Warren.
"The Purpose-Driven Life : what on earth am I here for? (Trawas)".
Singapore:
Zondervan / IM Print,
2004.
Text.