1. Aguirre, P., García, J., Álvarez, E., 2004. Efficiency and design considerations of high rate ponds used for the treatment of piggery wastes. In: 6th International Conference on Waste stabilization Ponds and 9th International Conference on Wetland Systems, France, pp. 131–138.
2. Standard Methods for the Examination of Water and Wastewater,2005
3. Athayde, S.T.S., Pearson, H.W., Silva, S.A., 2000. Algological study in waste stabilization ponds. In: Conferencia Latino Americanae Lagunas de Estabilization y Reuso, Santiago de Cali, Colombia.
4. Nitrogen mass balances for pilot-scale biofilm stabilization ponds under tropical conditions;Babu;Bioresour. Technol.,2011
5. Freshwater algae: identification and use as bioindicators;Bellinger,2011