Lyashenko, V., Khomenko, O., Chekushina, T., Dudar, T. and Topolnij, F. 2021. Evaluation of efficiency and environmental safety of leaching metals from ore: ways of development and prospects. Technology audit and production reserves. 3, 3(59) (Jun. 2021), 19–26. DOI:https://doi.org/10.15587/2706-5448.2021.235288.