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Las actividades productivas y su relaciĆ³n con la contaminaciĆ³n del agua de la Microcuenca Negroyacu, en Guaranda, Ecuador. // The productive activities and their relation with the water pollution of the Negroyacu Microcuenca, in Guaranda, Ecuador. CU [Internet]. 2017 Jul. 6 [cited 2024 Nov. 22];10(22):88-97. Available from: https://ojs.unemi.edu.ec/index.php/cienciaunemi/article/view/450