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Panayotova M, Panayotov V. COPPER RECOVERY FROM LOW GRADE ORES, CONCENTRATES AND TECHNOGENIC WASTE BY AMMONIA LEACHING - AN OLD IDEA WITH PROMISING FUTURE: COPPER RECOVERY FROM LOW GRADE ORES, CONCENTRATES AND TECHNOGENIC WASTE BY AMMONIA LEACHING - AN OLD IDEA WITH PROMISING FUTURE. JSAR [Internet]. 2023 Mar. 19 [cited 2024 Nov. 7];11(1):10-34. Available from: https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/210