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
Edward Arnold, 2001
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Second language development: trends and issues
edited by Sascha W. Felix
Gunter Narr Verlag, 1980
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