Gaya APA
Yoo, Giyeong. (2017).
Why? United Kingdom .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Yoo, Giyeong.
Why? United Kingdom.
Jakarta:
Elex Media Komputindo,
2017.
SMP IT.
Gaya MLA
Yoo, Giyeong.
Why? United Kingdom.
Jakarta:
Elex Media Komputindo,
2017.
SMP IT.
Gaya Turabian
Yoo, Giyeong.
Why? United Kingdom.
Jakarta:
Elex Media Komputindo,
2017.
SMP IT.