1. C. C. Lee, Handbook of Environmental Engineering Calculations (McGraw-Hill, USA, 2000).
2. O. Mungkasa and D. Wahyudi, Portrait of Indonesia’s sanitation development, Jakarta, 2010.
3. K. Nikoletta and F. Despo, Urban Wastewater Treatment Technologies, Part I, Report, Meda Water, Europe 2004.
4. M. J. Hammer, Water and Wastewater Technology (John Wiley and Sons, NY, 1986).
5. R. B. Rishipal, “Treatment of organic and inorganic pollutants in municipal Wastewater by agricultural by-product based granular Activated carbons (gac),” M.Sc. Thesis, Louisiana State University, USA, 2002.