González-Alcívar , D. ., and Y. de las M. Álvarez-Gutiérrez. “Relationship Between Water Quality and the Health of the Inhabitants of the Portoviejo River, Manabí ”. 593 Digital Publisher CEIT, vol. 8, no. 5, Sept. 2023, pp. 545-53, doi:10.33386/593dp.2023.5.2078.