Gaya APA

Prastiwi, K, W., Widihastuti, Y. (2011). Recycle 2 Bottle . Surabaya: Tiara Aksa.

Gaya MLA

Prastiwi, Kharisma, Widia., Widihastuti, Yuyun. "Recycle 2 Bottle". Surabaya: Tiara Aksa, 2011. Text.