1. Belkin, H.E., Zheng, B.S., Finkelman, RB., 1997b. Geochemistry of Coals Causing Arsenism in Southwest China. US Geological Survey Open File Report 97-496, 4th Internat. Symp. Environ. Geochem. 10.
2. Belkin, H.E., Zheng, B.S., Zhou, D.X., 1997a. Preliminary results on the geochemistry and mineralogy of arsenic in mineralized coals from endemic arsenosis area in Guizhou Province, PR China. 14th Internat. Ann. Pittsburgh Coal Conf. and Workshop Proceedings. CD-ROM, 1-20.
3. Geochemistry of Coal;Bouska,1981
4. Bureau of Geology and Mineral Resources of Guizhou Province, 1986. Geological Map of Guizhou Province, People's Republic of China (Scale: 500,000). China Geological Map Printing House.
5. Coleman, S.L., Bragg, LJ., 1990. Distribution and mode of occurrence of arsenic in coal. In: Chyi, L.L., Chou, C.L (Eds.), Recent Advances in Coal Geochemistry. Spec. Pap. 248, Geol. Soc. Am., pp. 13–34.