Shurter, Robert L.
Handy grammar reference: a guide to better English
McGraw-Hill, 1959
 Buku Teks SO
Hewings, Martin
Advanced grammar in use : a reference and practice book for advanced students of english
Cambridge University Press, 2005
 Buku Teks SO
Murphy, Raymond
English grammar in use : a reference and practice book for intermediate students
Cambridge University Press, 1998
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Makkink, H.J.
An English grammar
Nijgh and Van Ditmar, 1951
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Stone, Florence M.
The manager's question and answer book
[American Management Association, ], 2003
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