(2000). Vanijyam. Kerala Bhasha Institute.
Chicago Style aipamenaVanijyam. Thiruvananthapuram: Kerala Bhasha Institute, 2000.
MLA aipamenaVanijyam. Kerala Bhasha Institute, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(2000). Vanijyam. Kerala Bhasha Institute.
Chicago Style aipamenaVanijyam. Thiruvananthapuram: Kerala Bhasha Institute, 2000.
MLA aipamenaVanijyam. Kerala Bhasha Institute, 2000.