Raghavan, P. (1985). Kerala pathra pravarthana charithram (m). Kerala Sahithya Akademi.
Chicago Style aipamenaRaghavan, Puthuppally. Kerala Pathra Pravarthana Charithram (m). Thrissur: Kerala Sahithya Akademi, 1985.
MLA aipamenaRaghavan, Puthuppally. Kerala Pathra Pravarthana Charithram (m). Kerala Sahithya Akademi, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.