The English Language , 1982
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Dewi Paramita Surakusumah, author
Universitas Indonesia, 2014
UI - Skripsi (Membership)
Chung, Deborah D.L., author
CRC Press, 2001
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Horath, Larry, author
Prentice-Hall, 2001
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Timings, R.L. (Roger Leslie), 1927-, author
Longman Scientific, 1989
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