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2. Biooxidation—Heap Pretreatment Technology for Processing Lower Grade Refractory Gold Ores;Brierley,1995
3. Theory and Practice of Utilizing Microorganisms in Difficult-to-dress Ores and Concentrates;Pol'kin,1975
4. Toxic Metals in Leaching Systems;Norris,1978
5. Microbial leaching of refractory gold ores;Shrestha;Australian Mining,1988