Reid, Lawrence A.
Phonology of central bontoc
The Polynesian Society, 1963
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Hogg, Richard
Metrical phonology: a coursebook/Richard Hogg and C.B. McCully
Cambridge University Press , 1987
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Sloat, Clarence
Introduction to phonology / Clarence Sloat, Shalron Henderson Taylor, James E. Hoard
Prentice-Hall, 1978
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Bromley, H. Myron
The Phonology of lower grand valley Dani : a comparative structural study of skewed phonemic patterns
Government of Netherlands, 1961
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The Cambridge handbook of phonology
Paul de Lacy, editor
Cambridge University Press, 2011
 Buku Teks SO