Vidhvan Koyithampuran. (1938). Ravana Vijayam. Kerala Sahithya Akademi.
Chicago Style aipamenaVidhvan Koyithampuran. Ravana Vijayam. Thrissur: Kerala Sahithya Akademi, 1938.
MLA aipamenaVidhvan Koyithampuran. Ravana Vijayam. Kerala Sahithya Akademi, 1938.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.