Rama Varma Vayalar. (1976). Vayalar krithikal: Kavithakalum gaanagalum. S.P.C.S..
Chicago Style aipamenaRama Varma Vayalar. Vayalar Krithikal: Kavithakalum Gaanagalum. Kottayam: S.P.C.S., 1976.
MLA aipamenaRama Varma Vayalar. Vayalar Krithikal: Kavithakalum Gaanagalum. S.P.C.S., 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.