Veloz Mayorga NC, Carbonel H. CAA. Evaluation of the water quality of the microcuenca of the Chibunga-Ecuador river in seasonal variations, period 2013-2017. Rev. Inst. investig. Fac. minas metal cienc. geogr. 2018;21(42):13-26. doi:10.15381/iigeo.v21i42.15784