Silverman, D. (2015). THE ENIGMA VARIATIONS: RESPONSE TO SAMPSON. Journal of Chinese Linguistics, 43(2), 697-702. https://www.airitilibrary.com/Article/Detail?DocID=P20181204001-201506-201812060011-201812060011-697-702
(1997). TONAL IRREGULARITIES IN TAI REVISITED. Journal of Chinese Linguistics Monograph Series, (12), 145-182. https://www.airitilibrary.com/Article/Detail?DocID=P20181128001-199712-201903200017-201903200017-145-182