Cook, Vivian
Second language learning and language teaching
ARNOLD, 2001
 Buku Teks
Richards, Jack C.
Approaches and methods in language teaching
Cambridge University Press, 2015
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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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Second language development: trends and issues / edited, Sascha W. Felix
Gunter Narr Verlag, 1980
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