Heine, Bernd
Language contact and grammatical change
Cambridge University Press, 2005
 Buku Teks
Aitchison, Jean, 1938-
Language change : progress or decay?
Cambridge University Press, 2001
 Buku Teks SO
Aitchison, Jean, 1938-
Language change : progress or decay?
Cambridge University Press, 2013
 Buku Teks SO
Jones, Mari C.
Exploring language change
Routledge , 2006
 Buku Teks SO
Language, usage and cognition / Joan Bybee
Cambridge University Press, 2010
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