1. A study on different aspects of geochemical exploration surveys for copper mineralisation in the Philippines;Ariate,1981
2. Partitioning of manganese, iron, copper, zinc, lead, cobalt, and nickel in black coatings on stream boulders in the vicinity of the Magruder Mine, Lincoln Co., Georgia;Carpenter;J. Geochem. Explor.,1978
3. Atomic absorption spectrophotometric determination of microgram levels of Co, Ni, Cu, Pb and Zn in soil and sediment extracts containing large amounts of Mn and Fe;Chao;U.S. Geol. Surv., J. Res.,1973
4. Use of partial dissolution techniques in geochemical exploration;Chao;J. Geochem. Explor.,1984
5. Experiments on usefulness of some selected chemical quantities in geochemical exploration in a former mining district;Dijkstra,1979