Biblio

B. Abraham, Fogde, M., Muench, E., y Wendland, C., «Sustainable sanitation for schools». Sustainable Sanitation Alliance, SuSanA, S.l., p. 8 p.; 5 fig.; photographs, 2011.

G. Hutton, Pfeiffer, V., Blume, S., Muench, E., Malz, Y., y Sustainable Sanitation Alliance -Eschborn, DE, SuSanA, «Costs and economics of sustainable sanitation». Sustainable Sanitation Alliance, SuSanA, Eschborn, Germany, p. 8 p. : 3 fig., 4 photogr., 1 tab., 2009.