Harris, David P.
Testing english as a second language
McGraw-Hill, 1969
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Ohta, Amy Snyder
Second language aquisition process in the classroom learning Japanese
Lawrence Erlbaum Associates Publ, 2001
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Second language writing : research insights for the classroom / edited, Barbara Kroll
Cambridge University Press, 1990
 Buku Teks
Kroll, B.
Second Language Writing Research Insights for the Classroom Barbara Kroll
Cambridge University Press, 1990
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Teaching English as a second language: a book of readings
edited by Harold B. Allen
McGraw-Hill, 1965
 Buku Teks