Morales Veraz, J., Barceló Sánchez, T. and Hernández Herrera, H. (2017) “Alternatives for the revalorization of the effluents in a pig company. Cienfuegos, Cuba”, International Journal of Management Science and Operations Research, 2(1), pp. 22-29. doi: 10.17981/ijmsor.v2i1.83.