Gaya APA

Cho, Youngseon. (2020). Why? dangerous substance ; material berbahaya (1). Jakarta: Elex Media Komputindo.

Gaya Chicago

Cho, Youngseon. Why? dangerous substance ; material berbahaya. 1 Jakarta: Elex Media Komputindo, 2020. Text.

Gaya MLA

Cho, Youngseon. Why? dangerous substance ; material berbahaya. 1 Jakarta: Elex Media Komputindo, 2020. Text.

Gaya Turabian

Cho, Youngseon. Why? dangerous substance ; material berbahaya. 1 Jakarta: Elex Media Komputindo, 2020. Print.