References
- Miorin , A. F. 1977 . “Wastewater treatment plant design” . In Water Pollution Control Federation Washington, DC WPCF Manual of Practice No. 8, ASCF Manual on Engineering Practice No. 36,
- Harrison , J. R. 1984 . “A survey of combined trickling filter and activated sludge process” . Jour. Water Pollut. Control Fed. , 56 : 1073
- Lo , H. H. and Hung , Y. T. 1991 . “Performance of municipal wastewater treatment plant” . Jour. Envir. Management and Health , 2 (3) : 6 – 12 .