Gaya APA

Song, Young Woon. (2013). Unsur . : .

Gaya Chicago

Song, Young Woon. Unsur. : , 2013. Text.

Gaya MLA

Song, Young Woon. Unsur. : , 2013. Text.

Gaya Turabian

Song, Young Woon. Unsur. : , 2013. Print.