Jones, Leo
Functions of american english: communication activities for the clas room/Leo Jones
New York Cambridge University Press 1983,
 Buku Teks
Holschuh, Louis W.
The functions of the English grammer/Louis W. Holscchuh
New York St. Martin's Press 1991,
 Buku Teks
Mackie, Benita, author
Building sentences/by Benita Mackie, Shirley Johnsen Rompf
Upper Saddle River,N.J. Prentice Hall 1995,
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English workshop
New York : Holt, Rinehart and Winston, 1995,
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Cornog, Mary Wood
Merriam-webster's vocabulary bullder/Mary wood cornog
Springfield:Massachusetts Merriam-Webster, 1994,
 Buku Teks
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