Fuentes Barrera, G. A., and J. Guerrero Erazo. “Water Proporcional Meters Used As a Tool for Integrated Water Management.”. Rev. Téc. Fac. Ing. Univ. Zulia, Vol. 32, no. 2, 1, http://www.produccioncientifica.luz.edu.ve/index.php/tecnica/article/view/6660.