Research on the Value of the Annals of Local Histry in Tongren;

Deep Thinking of Environmental Education of Middle School Students in the Ethnic Minority Area——Illustrated by Tongren Guizhou;

Effects of Soil Nutrient Contents on Wheat Yield in Tongren Prefecture,Guizhou;

Present Status and Development Foreground of Bamboo Industry in Tongren Zone, Guizhou Province;