Gaya APA
Parijs van Soematra. (2010).
Medan:
Rainmaker Publishing House.
Gaya Chicago
Parijs van Soematra.
.
Medan:
Rainmaker Publishing House,
2010.
Text.
Gaya MLA
Parijs van Soematra.
.
Medan:
Rainmaker Publishing House,
2010.
Text.
Gaya Turabian
Parijs van Soematra.
Medan:
Rainmaker Publishing House,
2010.
Print.