Abdula, U. (1989). Vishista Pachakam. P.K Brothers.
Chicago Style aipamenaAbdula, Ummi. Vishista Pachakam. Kozhikode: P.K Brothers, 1989.
MLA aipamenaAbdula, Ummi. Vishista Pachakam. P.K Brothers, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.