Drummond, Gordon
English sentence patterns and multi-level practice exercises with grammar notes
Essex Longman, 1972
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Pincas, Anita
Writing in English Book 3
Macmillan, 1983
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Hewings, Martin
Pronunciation practice activities : a resource book for teaching english pronunciation
Cambridge University Press, 2004
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Dowling, Barbara Tolley
Business concepts for English practice
Newbury House Publishers , 1982
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English we use anthology of current usage with exercises for practice in the spoken and written language / Close R.A.
Buku Teks SO