1. Standard methods for the examination of water and wastewater;APHA,1985
2. Biological Control of Nitrogen in Wastewater Treatment;Barness,1983
3. Biological wastewater treatment: theory and application;Grady,1980
4. Application of fixed-film bioreactors for aerobic and anaerobic treatment of hazardous organic wastes;Hamoda,1987
5. Operating characteristics of the aerated submerged fixed-film (ASFF) bioreactor;Hamoda;Water Res.,1987