Krishnapilla, N. (1979). Decemberile Manjuthullikal: Kavithakal. S.P.C.S..
Chicago Style aipamenaKrishnapilla, Nalankal. Decemberile Manjuthullikal: Kavithakal. Kottayam: S.P.C.S., 1979.
MLA aipamenaKrishnapilla, Nalankal. Decemberile Manjuthullikal: Kavithakal. S.P.C.S., 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.