Dhanny R. Cyssco
English grammar practice for TOEFL preparation test / Dhanny R. Cyssco
Puspa Swara, 2004
 Buku Teks SO
Kaplan, Jeffrey P.
English grammar : principles and facts
Prentice-Hall International, 1995
 Buku Teks SO
Makkink, H.J.
An English grammar
Nijgh and Van Ditmar, 1951
 Buku Teks SO
Newby, Michael
The structure of English : a handbook of English grammar
Cambridge University Press, 1988
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Greenbaum, Sidney
A students grammar of the English language
Longman , 1990
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