P. Hartmann,
Iron and manganese removal : simple methods for drinking water, vol. no. 1. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 2001, p. 46 p. : 11 fig., photogr., 2 tab.
B. Faso. Asse BF,
«Loi No. 002-2001/AN : portant loi d'orientation relative a la gestion de l'eau». Burkina Faso Unite - Progres - Justice, Assemblée Nationale, Ouagadougou, Burkina Faso, p. 8 p., 2001.
F. Brikke, Postma, L., L. Campaore, M., Mar, L., Yaro, J., Djoukam, J., y Blanchet, F.,
«West Africa water programme : evaluation and advisory mission : final report. Pt 2. Country reports». PLAN International, Dakar, Senegal, p. v, 135 p., 2001.
F. Brikke, Postma, L., L. Campaore, M., Mar, L., Yaro, J., Djoukam, J., y Blanchet, F.,
«West Africa water programme : evaluation and advisory mission : final report. Pt. 1. Main report». PLAN International, Dakar, Senegal, p. xiii, 65 p., 2001.