Rushton, R. (2006). WHERE DO WE GO FROM HERE ? PT. Gramedia Pustaka Utama.
Chicago Style aipamenaRushton, Rosie. WHERE DO WE GO FROM HERE ? PT. Gramedia Pustaka Utama, 2006.
MLA aipamenaRushton, Rosie. WHERE DO WE GO FROM HERE ? PT. Gramedia Pustaka Utama, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.