1. The application of soil sampling to geochemical exploration in nonglaciated regions of the world;Bradshaw,1979
2. “Lag”, a geochemical sampling medium for arid regions;Carver,1985
3. Use of partial extraction techniques in geochemical exploration;Chao;J. Geochem. Explor.,1984
4. Introduction to Exploration Geochemistry;Levinson,1980
5. Regional geochemical surveys in arid and semiarid regions in the middle and western part of Inner Mongolia;Ren,1989