APA Style
Cho, Kyung - Cheol, Yuliawati Dwi Widyaningrum. (2010).
Why ? Alam Semesta .
Jakarta:
Yayasan Obor Indonesia.
Chicago Style
Cho, Kyung - Cheol, Yuliawati Dwi Widyaningrum.
Why ? Alam Semesta.
Jakarta:
Yayasan Obor Indonesia,
2010.
Text.
MLA Style
Cho, Kyung - Cheol, Yuliawati Dwi Widyaningrum.
Why ? Alam Semesta.
Jakarta:
Yayasan Obor Indonesia,
2010.
Text.
Turabian Style
Cho, Kyung - Cheol, Yuliawati Dwi Widyaningrum.
Why ? Alam Semesta.
Jakarta:
Yayasan Obor Indonesia,
2010.
Print.