Gutiérrez, E., Caldera, Y., Valbuena, F., & Silva, S. (1). Post-treatment of municipal wastewater for feeding to boilers using ionic exchange. Rev. Téc. Fac. Ing. Univ. Zulia, 28(3). Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5893