Lyons, John
Natural language and universal grammar
Cambridge University Press, 1991
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Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
 Buku Teks
Parrot, Martin
Grammar for English language teachers
Cambridge University Press, 2003
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Krulee, Gilbert K.
Computer processing of natural language
Prentice-Hall, 1991
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Gosse Bouma, editor
Natural language processing and information systems : 17th International Conference on Applications of Natural Language to Information Systems, NLDB 2012, Groningen, The Netherlands, June 26-28, 2012 : proceedings
[, Springer-Verlag], 2012
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