Amin, A. R. (2006). Zikr, Pikr, mikr, The Calestial Management/ A. Riawan Amin. Jakarta: Senayan Abadi publishing.
Chicago Style aipamenaAmin, A. Riawan. Zikr, Pikr, Mikr, The Calestial Management/ A. Riawan Amin. Jakarta: Senayan Abadi publishing, 2006.
MLA aipamenaAmin, A. Riawan. Zikr, Pikr, Mikr, The Calestial Management/ A. Riawan Amin. Jakarta: Senayan Abadi publishing, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.