Biblio

K. Liang, Sobsey, M., and Stauber, C., “Improving household drinking water quality : use of biosand filters in Cambodia”. Water and Sanitation Program Cambodia Country Office, Phnom Penh, Cambodia, 2010.

T. A. Dillaha and Zolan, W. J., “A comparative laboratory study of sewage treatment by a capillary siphon trench system versus a conventional leaching trench system”. University of Guam, Guam, p. vii, 18 p.: fig., tab., 1984.

G. - E. Teka, “Human wastes disposal - Ethiopia : a practical approach to environmental health”. Ethiopia, Ministry of Health, Addis Ababa, Ethiopia, p. xiii, 122 p.: fig., tab., 1984.

M. Noll, “Die Besiedlung von Langsamsandfiltern und ihre Beeinflussung durch Pestizide”, vol. no. 19. Institut fur Wasserforschung -Dortmund, DE, Dortmund, Germany, p. 179 p. : 36 fig., 12 tab., 1974.

J. N. Lanoix and Wagner, E. G., Excreta disposal for rural areas and small communities, vol. no. 39. Geneva, Switzerland: World Health Organization (WHO), 1958, p. 187 p.: fig., tab.