Ross, Janet
Writing english : a composition text in english as a foreign language
Harper & Row , 1965
 Buku Teks SO
Hyland, Ken
Second language writing
Cambridge University Press, 2007
 Buku Teks
Harris, David P.
Testing english as a second language
McGraw-Hill, 1969
 Buku Teks
Exploring the dynamics of second language writing
Barbara Kroll, editor
Cambridge University Press, 2003
 Buku Teks
Lugton, Robert C.
American topics: a reading-vocabulary text for speakers of English as a second language / Robert C. Lugton
Prentice-Hall, 1978
 Buku Teks SO