Cooper, Joel, Kimberly A Kelly & Kimberlee  Weaver, ???-?? . 2004. Attitudes, norms and social groups. ? , Social Cognition, 244?267. (Social Cognition). Malden, MA: Blackwell.

Ryan, Ellen B, Howard  Giles & Miles  Hewstone, ???-?? . 1988. The measurement of language attitudes. ? , Sociolinguistics. An International Handbook of the Science of Language and Society, vol. 2, 1068?1081. (Sociolinguistics. An International Handbook Of The Science Of Language And Society). Berlin ; New York: Walter de Gruyter.

Giles, Howard, Miles  Hewstone, Ellen B Ryan & Patricia  Johnson, ???-?? . 1988. Research on language attitudes. ? , Sociolinguistics. An International Handbook of the Science of Language and Society, vol. 1, 585?597. (Sociolinguistics. An International Handbook Of The Science Of Language And Society). Berlin ; New York: Walter de Gruyter.

Giles, Howard & Miles  Hewstone, ???-?? . 1982. Cognitive structures, speech, and social situations : Two integrative models. Language Sciences 4. (Language Sciences). 187?219.