DJVU PDF Dai Qingxia and Liu Yan. 1997, "Analysis of the tones in the Guangka subdialect of De’ang", in The Mon-Khmer Studies Journal, vol. 27, pp. 91-108. cite.

DJVU PDF Matisoff, J.A. 1997, "Dàyáng Pumi phonology and adumbrations of comparative Qiangic", in The Mon-Khmer Studies Journal, vol. 27, pp. 171-213. cite.