Ellis, Rob
Instructed second language acquisition
Blackwell, 1990
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Leaver, Betty Lou
Achieving success in second language acquisition
Cambridge Press , 2005
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Theories in second language acquisition: an introduction
edited by Jessica Williams and Bill Van Patten
NY : Routledge, 2015
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Cook, Vivian
Second language learning and language teaching
ARNOLD, 2001
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Research methods in second language acquisition : a practical guide
Edited by Alison Mackey, Dudan M. Gass
Wiley-Blackwell, 2012
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