DJVU PDF Beebe, L.M. 1979, "Initial Consonant Cluster Reduction as a Function of Age Group in Bangkok Thai Speakers", in Papers in Southeast Asian Linguistics No.6, Tai Studies in Honor of William J. Gedney, ed. T.W. Gething and N.D. Liem, vol. 6, pp. 11-36. Pacific Linguistics, the Australian National University. cite.