Biblio

M. T. P. Razzolini, Günther, W. M. R., Peternella, F. Ados Santos, S. Rocha, M. -, V. Bastos, K., Santos, T. Fda Silva, and Cardoso, M. R. A., “Quality of water sources used as drinking water in a Brazilian peri-urban area”, Brazilian Journal of Microbiology, pp. P. 560 - 566; 1 fig.; 2 tab., 2011.

M. A. Grant and Ziel, C. A., “Evaluation of a simple screening test for faecal pollution in water”, Aqua : journal of water supply research and technology, pp. p. 13-18: 5 tab., 1996.

D. D. Mara, Taylor, H. D., and Gambrill, M. P., Lime treatment of municipal wastewater, vol. no. 3. Leeds, UK: University of Leeds, Department of Civil Engineering, 1994, p. viii, 45 p. : fig., tab.

M. Madsen and Schlundt, J., “Low-technology water purification by bentonite clay flocculation as performed in Sudanese villages : bacteriological examinations”, Water research, pp. p. 873-882, 1989.

D. D. Mara, Bacteriology for sanitary engineers. Edinburgh, UK: Churchill Livingstone, 1974, p. x, 209 p. : fig.