BRAGA, Maria Luiza; MOLLICA, Maria Cecília (Org.). INTRODUÇÃO à sociolinguística: o tratamento da variação. 4. ed. São Paulo: Contexto, 2012. 200 p. ISBN 9788572442220 (broch.)
CANAGARAJAH, A. Suresh. Resisting linguistic imperialism in English teaching. Oxford: Oxford University Press, 1999. viii, 216 p. (Oxford applied linguistics ) ISBN 9780194421546 (broch.)
FARES, Josebel Akel (Org.). Diversidade cultural: temas e enfoques. Belém, PA: Ed. Unama, 2006. 390 p. (Linguagens : estudos interdisciplinares e multiculturais ; 2). ISBN 9788576910244 (broch.).
LABOV, William; ASH, Sharon; BOBERG, Charles. The atlas of North American English: phonetics, phonology, and sound change : a multimedia reference tool. Berlin; New York: Mouton de Gruyter, 2006. 318 p. ISBN 9783110167467 (enc.)
ROACH, Peter. English phonetics and phonology: a practical course.4th ed. New York: Cambridge University Press, 2009. xii, 231 p. ISBN 9780521717403 (broch.)