Gaya APA

Byeon, W., Novianti, E, N. (2021). Why? People : Albert Schweitzer . Jakarta: Elex Media Komputindo.

Gaya MLA

Byeon, Wangjung., Novianti, Endah, Nawang. "Why? People : Albert Schweitzer". Jakarta: Elex Media Komputindo, 2021. Text.