Velayudhan P S. (1995). Loka charithram: Onnam bhagam (13th.ed.). Kerala Bhasha Institute.
Chicago Style aipamenaVelayudhan P S. Loka Charithram: Onnam Bhagam. 13th.ed. Thiruvananthapuram: Kerala Bhasha Institute, 1995.
MLA aipamenaVelayudhan P S. Loka Charithram: Onnam Bhagam. 13th.ed. Kerala Bhasha Institute, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.