APA (7th ed.) Citation

Youngsun. (2013). Why? Musik. PT. Elex Media Komputindo.

Chicago Style (17th ed.) Citation

Youngsun. Why? Musik. PT. Elex Media Komputindo, 2013.

MLA (8th ed.) Citation

Youngsun. Why? Musik. PT. Elex Media Komputindo, 2013.

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