Gaya APA
Joong, W, Y.
(2009).
Why ? Invention and Discovery
(
1)
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Jakarta:
Elex Media Komputindo.
Gaya MLA
Joong, Wang, Yeoun.
"Why ? Invention and Discovery".
1
Jakarta:
Elex Media Komputindo,
2009.
Ilmu Terapan.