1. Trace Elements in the Terrestrial Environment;Adriano,1986
2. Background levels of trace elements in soils;Berrow,1984
3. Environmental Geochemistry and Health;Bowie,1984
4. Dispersion of toxic elements in the area covered with uranium-bearing black shales in Korea;Chon;Korean Inst. Mining Geol.,1991
5. Geochemical dispersion of harmful elements in geological environments (I);Chon;KIGAM Report,1993