APA (7th ed.) Citation

N, E. N., & Sangseok, Y. (2017). Why?: The Origin of Species (Charles Darwin). PT Elex Media Komputindo.

Chicago Style (17th ed.) Citation

N, Endah Nawang, and Yoon Sangseok. Why?: The Origin of Species (Charles Darwin). PT Elex Media Komputindo, 2017.

MLA (8th ed.) Citation

N, Endah Nawang, and Yoon Sangseok. Why?: The Origin of Species (Charles Darwin). PT Elex Media Komputindo, 2017.

Warning: These citations may not always be 100% accurate.