Gaya APA

Cho, Youngsun. (2019). Why?: 3D Printing (Cetakan 3D) . Jakarta: PT Elex Media Komputindo.

Gaya Chicago

Cho, Youngsun. Why?: 3D Printing (Cetakan 3D). Jakarta: PT Elex Media Komputindo, 2019. Text.

Gaya MLA

Cho, Youngsun. Why?: 3D Printing (Cetakan 3D). Jakarta: PT Elex Media Komputindo, 2019. Text.

Gaya Turabian

Cho, Youngsun. Why?: 3D Printing (Cetakan 3D). Jakarta: PT Elex Media Komputindo, 2019. Print.