1. Tchobanoglus, G., Burton, F.L., and Stensel, H.D. (2003). Wastewater engineering (Treatment and reuse), 4th Ed., McGraw- Hill Inc.
2. Gerardi, M.H. (2002). Nitrification and denitrification in the activated sludge process, Wiley-Interscience, New York.
3. Bitton, G. (1999). Wastewater microbiology, Wiley liss, N.Y.
4. Rich, L. G. (1999). High performance aerated lagoon systems, American Academy of Environmental Engineers, Annapolis MD.
5. Mara, D., and Pearson, H. (1998). Design manual for waste stabilization ponds in mediterranean countries, Lagoon Technology International Ltd., Leeds, England.
6. Hall, J.C., and Foxen, R. J. (1983). “ Nitrification in the BOD test increases POTW noncompliance.” J. Wat. Pollut. Control Fed., 55(12), 1461-1469.
7. Yong, J. C. (1973). “Chemical methods for nitrification control.” J. Wat. Pollut. Control Fed., 45(4), 637-646.
8. Barth, E. F. (1981). “To inhibit or not to inhibit: That is the question.” J. Wat. Pollut. Control Fed., 53(11), 1651-1652.
9. Dague, R. E. (1981). “Inhibition of nitrogenous BOD and treatment plant performance evaluation.” J. Wat. Pollut. Control Fed., 53(12), 1738-1741.
10. Chapman, K., James, H., and Muirhead, W. (1991). “Minimizing the impact of nitrification in the BOD5 test.” Operations Forum, 8(9), 1-11.
11. Ramaraj, R., Tsai, D. D.W., and Chen, P. H. (2010). “Algae growth in natural water resources.” J. of Soil and Water Conservation, 42 (4), 439-450.
12. Griffith S., and Erick, W. (2009). “Removal and utilization of wastewater nutrients for algae biomass and biofuels.” All Graduate Thesis and Dissertations, Utah State University, Paper 631.
13. Federation of Canadian Municipalities and National Research Council. (2004). Optimization of lagoon operation, NRC.CNRC, Canada, 13-15.
14. APHA, AWWA, WEF. (2005). Standard methods for the examination of water and wastewater, 21st Ed., New York.
15. Sperling.M.V.(2007). Waste stabilization ponds, IWA, UK.