Wave model (linguistics) Notes References Journals Books Labov, William (1994, 2001), Principles of Linguistic Change (vol.I Internal Factors, 1994; vol.II Social Factors, 2001), Blackwell. Lewis, G. (1999). The Turkish Language Reform: A Catastrophic Success. Oxford : Oxford University Press. Wardhaugh, R. (1986), An Introduction to Sociolinguistics, Oxford/ New York. Further reading AlBader, Yousuf B. (2015) "Semantic Innovation and Change in Kuwaiti Arabic: A Study of the Polysemy of Verbs" Hale, M. (2007), Historical linguistics: Theory and method, Oxford, Blackwell External links Sounds Familiar? The British Library website provides audio examples of changing accents and dialects from across the UK. Historical linguistics Sociolinguistics