V. Nam. Gener VN,
« National technical regulations for latrines [Viet Nam] ». Viet Nam, General Department of Preventive Medicine and Environmental Health, Hanoi, Viet Nam, p. 39 p., 2009.
IRC International Water and Sanitation Centre, The Hague, NL et NETWAS -Nairobi, KE, Network for Water and Sanitation,
« Report of the evaluation of the PHAST tool for the promotion hygiene and sanitation in the GOK/UNICEF programme of cooperation ». UNICEF Kenya, Nairobi, Nairobi, Kenya, p. v, 85 p.; 2 tab.; 3 fig.; 4 boxes; 10 photographs, 2009.
T. F. Clasen,
« Scaling up household water treatment among low-income populations ». World Health Organization (WHO), Geneva, Switzerland, p. xii, 72 p. : 2 boxes, 5 fig., 10 tab., 2009.
« Water ». Molecular Diversity Preservation International, Water Editorial Office, MDPI, Basel, Switzerland, 2009.
World Water Assessment Programme -Paris, France, WWAP,
Water in a changing world, vol. no. 3. Paris, France: UNESCO, 2009, p. xxvi, 318 p. : boxes, fig., maps, tab.