APA (7th ed.) Citation

Wildana, I., & Soon, C. I. (2010). Why?: Insects (Serangga). PT Elex Media Komputindo.

Chicago Style (17th ed.) Citation

Wildana, Iwan, and Choi Im Soon. Why?: Insects (Serangga). PT Elex Media Komputindo, 2010.

MLA (8th ed.) Citation

Wildana, Iwan, and Choi Im Soon. Why?: Insects (Serangga). PT Elex Media Komputindo, 2010.

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