Klaiman, M.H.
Grammatical voice
Cambridge University Press , 1991
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Aung San Suu Kyi
The voice of hope
Penguin Books, 1997
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Klevans, Richard L.
Voice recognition
Artech House, 1997
 Buku Teks SO
Klevans, Richard L.
Voice recognition
Artech House, 1997
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Schierbeek, Bert
Shapes of the voice
Twayne, 1977
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