Gaya APA
Sangseok, Y. et al
(2017).
Why? Future Energy (Energi Masa Depan)
.
Republik of Korea:
YeaRimDang Publishing.
Gaya MLA
Sangseok, Yoon. et al.
"Why? Future Energy (Energi Masa Depan)".
Republik of Korea:
YeaRimDang Publishing,
2017.
Text.