1. Bohn H. L. (1996). “Biofiltration media.” Proc. 89th Annu. Meeting & Exhibition of Air and Waste Mgmt. Assn. Nashville Tenn. 96-WP87A.01.
2. Chou M. S. and Huang J. J. (1997). “Treatment of methylethylketone in air stream by biotrickling filters.” J. Envir. Engrg. ASCE 6 569– 576.
3. Don J. A. and Feenstra L. (1984). “Odour abatement through biofiltration.” Proc. Symp. on Characterization and Control of Odoriferous Pollutants in Process Industries Belgium.
4. Ergas S. J. Schroeder E. D. and Cheng D. P. Y. (1993). “Control of air emission of dichloromethane trichloroethene and toluene by biofiltration.” Proc. 86th Annu. Meeting & Exhibition of Air and Waste Mgmt. Assn. Denver Colo. 93-WA-52B.01.
5. Geankoplis C. J. (1978). Transport processes and unit operations. Allyn and Bacon Inc. Boston Mass. 460.