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., and 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., and 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.