Littlewood, William T.
Foreign and second language learning : language-acquisition research and its implications for the classroom
Cambridge University Press, 1994
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Wode, Henning
Learning a second language : I. integrated view of language acquisition / Henning Wode
Gunter Narr , 1981
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Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press, 2006
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Ellis, Rob
Instructed second language acquisition
Blackwell, 1990
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Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press, 2012
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