Lasagabaster, David, ??? . 2004. Attitude. ? , Sociolinguistics. An International Handbook of the Science of Language and Society, vol. 1, 399?405. 2nd ???. (Sociolinguistics. An International Handbook Of The Science Of Language And Society). Berlin ; New York: Walter de Gruyter.

Giles, Howard & Nancy  Niedzielski, ???-?? . 1998. Italian is beautiful, German is ugly. ? , Language Myths, 85? 93. (Language Myths). London: Penguin Books.