Gaya APA
Heo, Soong Bong. (2010).
Why ? Environment Lingkungan .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Heo, Soong Bong.
Why ? Environment Lingkungan.
Jakarta:
Elex Media Komputindo,
2010.
Text.
Gaya MLA
Heo, Soong Bong.
Why ? Environment Lingkungan.
Jakarta:
Elex Media Komputindo,
2010.
Text.
Gaya Turabian
Heo, Soong Bong.
Why ? Environment Lingkungan.
Jakarta:
Elex Media Komputindo,
2010.
Print.