Azañero Ortíz Ángel. Recovery of gold and silver from minerals by heap leaching. Rev. Inst. investig. Fac. minas metal cienc. geogr [Internet]. 2001 Jul. 15 [cited 2024 Jul. 18];4(7):63-70. Available from: https://revistasinvestigacion.unmsm.edu.pe/index.php/iigeo/article/view/3065