Gaya APA
Samudra, Unggul. (2001).
Bertanam Coklat .
:
Balai Pustaka.
Gaya Chicago
Samudra, Unggul.
Bertanam Coklat.
:
Balai Pustaka,
2001.
Text.
Gaya MLA
Samudra, Unggul.
Bertanam Coklat.
:
Balai Pustaka,
2001.
Text.
Gaya Turabian
Samudra, Unggul.
Bertanam Coklat.
:
Balai Pustaka,
2001.
Print.