• Language contact;
  • code-switching;
  • borrowing;
  • variation;
  • bilingualism

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David Crystal. The Cambridge Encylopaedia of the English Language.

W. Peter Robinson. Deceit, Delusion and Detection.

William F. Hanks. Language and Communicative Practices.

Elizabeth Couper–Kuhlen and Margaret Selting (eds). Prosody in Conversation: Interactive Studies.

Vivian de Klerk (ed.). Focus on South Africa.

M. Teresa Turell Julià (ed.). La Sociolingüística de la variació.

Michael Clyne. The German Language in a Changing Europe.

Jon F. Nussbaum and Justine Coupland (eds). Handbook of Communication and Aging Research.

David W. Green and others. Cognitive Science: an Introduction.