H. N. Grupo Cola Tegucigalpa,
« Encuesta sobre uso, operacion y mantenimiento de letrinas en Honduras ». Grupo Colaborativo de Agua y Saneamiento de Honduras, Tegucigalpa, Honduras, p. 59 p.: fig., tab., 1993.
J. P. Padmasiri, Jayatilake, G. M., et Kotuwegedara, J. P. K.,
« Groundwater pollution from double pit latrines », in
Water, environment and management : proceedings of the 18th WEDC Conference, Kathmandu, Nepal, 30 August - 3 September 1992, 1993, p. P. 239-241: 3 fig., 4 tab.
P. Chaudhari, Pattanaik, B. K., et Gandotra, R.,
« Impact of Sulabh Swasthya Yojna : an attitude study »,
Health for the millions, p. p. 21-24: 2 tab., ill., photogr., 1993.
H. Causer,
« Low-cost techniques for improving latrines in a demonstration village in Uganda »,
Waterlines, an international journal of water, sanitation and waste, p. p. 5-7: photogr., 1993.
S. A. Larmie et Sekpey, N. K.,
« Nitrate pollution of groundwater sources at Oyarifa », in
Water, sanitation, environment and development : proceedings of the 19th WEDC conference, Accra, Ghana, 6-10 September 1993, 1993, p. P. 303-305 : 2 fig., 1 tab.
B. Brandberg,
« A sanitation revolution in Bangladesh? »,
Waterlines, an international journal of water, sanitation and waste, p. p. 25-27: ill., photogr., 1993.
P. Wan,
« Social mobilization for sanitation », in
Water, environment and management : proceedings of the 18th WEDC Conference, Kathmandu, Nepal, 30 August - 3 September 1992, 1993, p. P. 28-31: 3 fig.
R. Shaw et Reed, B.,
« Technical Brief No. 38 : Emergency sanitation for refugees »,
Waterlines, an international journal of water, sanitation and waste, vol. no. 38, p. p. 15-18: 5 fig., 1993.
V. N. U. N. I. C. E. F. - Ha Noi et VN, V. Nam. Minis,
« Ve sinh gia dinh ». Viet Nam, Ministry of Health, Hanoi, Viet Nam, p. 24 p., 1993.