Gaya APA

Pyeon, W., Wijayanti, D, A. (2019). Why? People : Leonardo Da Vinci . Jakarta: PT. Elex Media Komputindo.

Gaya MLA

Pyeon, Wangjung., Wijayanti, Dhania, Astrini. "Why? People : Leonardo Da Vinci". Jakarta: PT. Elex Media Komputindo, 2019. Text.