Jayakumar, V. (1991). Ormakalude cheppu thurakkumbol.
Chicago Style aipamenaJayakumar, Vijayalayam. Ormakalude Cheppu Thurakkumbol. 1991.
MLA aipamenaJayakumar, Vijayalayam. Ormakalude Cheppu Thurakkumbol. 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.