DJVU PDF Burnham, D., Francis, E. and Webster, D. 1996, "The development of tone perception: cross-linguistic aspects and the effect of linguistic context", in The Fourth International Symposium on Language and Linguistics, Thailand, pp. 47-75. Institute of Language and Culture for Rural Development, Mahidol University. cite.

DJVU PDF Cooper, D. 1996, "How do Thais tell letters apart?", in The Fourth International Symposium on Language and Linguistics, Thailand, pp. 1163-1176. Institute of Language and Culture for Rural Development, Mahidol University. cite.