Ummarkutti. (1975). India Samudram. Institute of languages.
Chicago Style aipamenaUmmarkutti. India Samudram. Trivandrum: Institute of languages, 1975.
MLA aipamenaUmmarkutti. India Samudram. Institute of languages, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.