Gaya APA

Twins. (2004). : Pt. Gramedia Pustaka Utama.

Gaya Chicago

Twins. . : Pt. Gramedia Pustaka Utama, 2004. Text.

Gaya MLA

Twins. . : Pt. Gramedia Pustaka Utama, 2004. Text.

Gaya Turabian

Twins. : Pt. Gramedia Pustaka Utama, 2004. Print.