Investigation of techniques to replace amalgamation in artisanal gold mining operations . International Journal of Sustainable Energy and Environmental Research, [S. l.], v. 12, n. 2, p. 17–30, 2023. DOI: 10.18488/13.v12i2.3422. Disponível em: https://archive.conscientiabeam.com/index.php/13/article/view/3422. Acesso em: 4 aug. 2026.