Pelton, Gordon E.
Voice processing
McGraw-Hill, 1992
 Buku Teks SO
Klaiman, M.H.
Grammatical voice
Cambridge University Press , 1991
 Buku Teks SO
Aung San Suu Kyi
The voice of hope
Penguin Books, 1997
 Buku Teks SO
Klevans, Richard L.
Voice recognition
Artech House, 1997
 Buku Teks SO
Klevans, Richard L.
Voice recognition
Artech House, 1997
 Buku Teks