Voice processing system : Laporan kerja praktek di PT. Telkom Indonesia, Tbk.
Fakultas Teknik Universitas Indonesia, 2000
 UI - Tugas Akhir
Klaiman, M.H.
Grammatical voice
Cambridge University Press , 1991
 Buku Teks
Schierbeek, Bert
Shapes of the voice
Twayne, 1977
 Buku Teks
Klevans, Richard L.
Voice recognition
Artech House, 1997
 Buku Teks
Klevans, Richard L.
Voice recognition
Artech House, 1997
 Buku Teks