Littlewood, William T.
Foreign and second language learning : language-acquisition research and its implications for the classroom
Cambridge University Press, 1994
 Buku Teks SO
Mitchell, Rosamond
Second language learning theories
Routledge, 2004
 Buku Teks SO
Mitchell, Rosamond
Second language learning theories
Arnold, 1998
 Buku Teks SO
Second language writing : research insights for the classroom
editedby Barbara Kroll
Cambridge University Press, 1990
 Buku Teks SO
Allen, Edward David, 1923-
Classroom techniques : foreign languages and English as a second language
Harcourt Brace Jovanovich, c1977
 Buku Teks SO