NADIROV, R. K.; TURAN, M. D.; KARAMYRZAYEV, G. A. Copper ammonia leaching from smelter slag. International Journal of Biology and Chemistry, [S. l.], v. 12, n. 2, p. 135–140, 2020. DOI: 10.26577/ijbch-2019-i2-18. Disponível em: https://ijbch.kaznu.kz/index.php/kaznu/article/view/398. Acesso em: 20 jan. 2022.