2004
G. H. Community Accra,
«Small towns sector policy». Community Water and Sanitation Agency, Accra, Ghana, p. v, 17 p. : tab., 2004.
G. H. Community Accra,
«Small towns sector policy : design guidelines». Community Water and Sanitation Agency, Accra, Ghana, p. 12 p. : tab., 2004.
G. H. Community Accra,
«Small towns sector policy : operation and maintenance guidelines». Community Water and Sanitation Agency, Accra, Ghana, p. 17 p. + 27 p. appendixes : 4 tab., 2004.
C. H. S. A. N. D. E. C. - Duebendorf,
«SODIS : water quality improvement at household level : a case example from Bolivia». Swiss Federal Institute for Environmental Science and Technology (EAWAG), Duebendorf, Switzerland, p. 4 p. : photogr., 2004.
S. Burgess y Onyonge, C.,
«Solar disinfection of water : a case study from Kenya»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 22-25 : 1 box, 2 figs., 2 tab., 2004.
P. Ball,
«Solutions for reducing borehole costs in rural Africa». Water and Sanitation Program - African Region, Nairobi, Kenya, p. 12 p. : 6 fig., photogr., 1 tab., 2004.
P. Ball,
«Solutions vers la reduction du cout des puits d'eau en milieu rural Africain». Water and Sanitation Program - African Region, Nairobi, Kenya, p. 16 p. : 6 fig., photogr., 1 tab., 2004.