* Elliott, M., Stauber, C., Koksal, F., DiGiano, F., and M. Sobsey (2008). [http://www.hydraid.org/pdf/BSF_BacteriaViruses_Elliottetal_2008.pdf Reductions of E. coli, echovirus type 12 and bacteriophages in an intermittently operated 2 household-scale slow sand filter]. Water Research, Volume 42, Issues 10-11, May 2008.
* <cite id=ngai04>Ngai, T., Murcott, S. and R. Shrestha (2004). [http://web.mit.edu/watsan/Docs/Other%20Documents/KAF/Ngai%20-%20Asia%20Arsenic%20Network%20symposium%20paper%202004.pdf Kanchan Arsenic Filter (KAF) – Research and Implementation of an Appropriate Drinking Water Solution for Rural Nepal]. [Note: These tests were done on a plastic biosand filter]</cite>
* <cite id=palmateer97>Palmateer, G., Manz, D., Jurkovic, A., McInnis, R., Unger, S., Kwan, K. K. and B. Dudka (1997). Toxicant and Parasite Challenge of Manz Intermittent Slow Sand Filter. Environmental Toxicology, vol. 14, pp. 217- 225.</cite>
