DJVU PDF Kepping, K.B. 1982, "Once again on the agreement of the Tangut verb", in Linguistics of the Tibeto-Burman Area, vol. 7, no. 1, pp. 39-54. cite.
DJVU PDF Kwanten, L. 1982, "Verbal agreement in Tangut: a conflicting opinion", in Linguistics of the Tibeto-Burman Area, vol. 7, no. 1, pp. 55-61. cite.