Unithiri, N. (2000). Bhashabhooshanathinte upadanangal. Kerala Bhasha Institute.
Chicago Style aipamenaUnithiri, N.V.P. Bhashabhooshanathinte Upadanangal. Thiruvanathapuram: Kerala Bhasha Institute, 2000.
MLA aipamenaUnithiri, N.V.P. Bhashabhooshanathinte Upadanangal. Kerala Bhasha Institute, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.