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Basic korean : a grammar and workbook
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Dean, Howard H.
Effective communication : a guide to reading, writing, speaking and listening
Prentice-Hall, 1962
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Hewings, Martin
Advanced grammar in Use : a self-study reference and practice book for advanced studentss of english with answers
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Cara mudah menerapkan Engglish grammar : kaidah & pelatihan untuk rujukan belajar sendiri
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