1. Environmental engineering and sanitation;Salvato,1992
2. Integrated solid waste management: engineering principles and management issues;Tchobanoglous,1993
3. Waste water engineering: treatment and reuse;Tchobanoglous,2002
4. Basic criteria and design aspects for deep aeration tanks;Moore;Water Res.,1972
5. Biological treatment of sewage and industrial wastes;Okun,1956