J. J. M. Y. Ospino Edery, “The mining-metallurgical activity of Cu, Zn, Pb and its influence on the economic growth of Peru, 1996-2018”, Rev. Inst. investig. Fac. minas metal cienc. geogr, vol. 24, no. 48, pp. 279–286, Dec. 2021, doi: 10.15381/iigeo.v24i48.21781.