Vayala Vasudevanpillai. (1998). V.T.Bhattathiripad. Kerala sangeetha nataka akkademy.
Chicago Style aipamenaVayala Vasudevanpillai. V.T.Bhattathiripad. Thrissur: Kerala sangeetha nataka akkademy, 1998.
MLA aipamenaVayala Vasudevanpillai. V.T.Bhattathiripad. Kerala sangeetha nataka akkademy, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.