Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press, 2006
 Buku Teks SO
Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press, 2012
 Buku Teks SO
Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press, 2017
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Larsen-Freeman, Diane
An introduction to second language acquisition research
Longman , 1992
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Leaver, Betty Lou
Achieving success in second language acquisition
Cambridge Press , 2005
 Buku Teks SO