共 7 条
[1]
BLACK JW, 1938, SPEECH MONOGRAPHS, V5, P1
[2]
COTTON JC, 1940, J SPEECH DISORDERS, P289
[3]
CURTIS JF, 1942, THESIS STATE U IOWA
[4]
HEFFNER RMS, 1949, GENERAL PHONETICS, P112
[5]
LEWIS MM, 1951, INFANT SPEECH, P28
[6]
Potter R.K., 1947, AM ANN DEAF, V91, P447