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, 2006
 Buku Teks SO
Larsen-Freeman, Diane
An introduction to second language acquisition research
Longman , 1992
 Buku Teks SO
Littlewood, William T.
Foreign and second language learning : language-acquisition research and its implications for the classroom
Cambridge University Press, 1994
 Buku Teks SO
Ellis, Rob
Instructed second language acquisition
Blackwell, 1990
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