Saville-Troike, Muriel, 1936-
Introducing second language acquisition
Cambridge University Press , 2006
 Buku Teks
Ellis, Rob
Instructed second language acquisition
Blackwell, 1990
 Buku Teks
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
 Buku Teks SO
Theories in second language acquisition: an introduction
edited by Jessica Williams and Bill Van Patten
NY : Routledge, 2015
 Buku Teks