1. Effluent treatment;ABSON,1967
2. Standard Methods for the Examination of Water and Wastewater;AMERICAN PUBLIC HEALTH ASSOCIATION,1992
3. Experiments on the oxidation of sewage without the aid of filters;ARDEN;Surveyor,1914
4. The efficient use of water in fermentation processes;ASHLEY;I. Chem. E. Symp. Ser.,1982
5. Reliability and precision of BOD and COD determinations;BALLINGER;JWPCF,1962