Gaya APA
Cho, Kyung Cheol, Yuliawati Dwi Widyaningrum. (2009).
Why? The Universe: Alam Semesta .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Cho, Kyung Cheol, Yuliawati Dwi Widyaningrum.
Why? The Universe: Alam Semesta.
Jakarta:
Elex Media Komputindo,
2009.
Text.
Gaya MLA
Cho, Kyung Cheol, Yuliawati Dwi Widyaningrum.
Why? The Universe: Alam Semesta.
Jakarta:
Elex Media Komputindo,
2009.
Text.
Gaya Turabian
Cho, Kyung Cheol, Yuliawati Dwi Widyaningrum.
Why? The Universe: Alam Semesta.
Jakarta:
Elex Media Komputindo,
2009.
Print.