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J. Kings, “Securing water to enhance local livelihoods (SWELL). Part 2. Choosing technologies : some options for water supply for household and agricultural use in the Bohlabela District”. AWARD, Association for Water and Rural Development, Acornhoek, South Africa, p. 14 p. : fig., photogr., tab., 2004.

R. Chopra, “Survival lessons : Himalayan Jal Sanskriti”. Peoples' Science Institute, Dehra Dun, India, p. 66 p. : photogr., 1 tab., 2003.

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P. Morgan, “Small steps count : building on traditional methods for rural water supply”, Waterlines, an international journal of water, sanitation and waste, pp. p. 2-5 : 1 box, 5 photogr., 1996.

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Socio-Economic Units, Kerala -Trivandrum, IN and Ernakulam, I. N. N. E. E. R. I. -, “Rural water supply through development of natural springs”. Kochi Zonal Laboratory, National Environmental Engineering Research Institute, Ernakulam, India, p. 41 p. : fig., photogr., tab., 1994.

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M. Verhaegh, “Water the spring of life : a research on the quality of drinking-water in the Mantsonyane area”. University of Maastricht, Maastricht, The Netherlands, p. 44 p. + 24 p. ann.: fig., tab., 1990.

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H. Pfiffner, “Summary of the gravity water supply design and hydraulic correspondence course”. Sarvodaya Rural Technical Services, Moratuwa, Sri Lanka, p. 47 p.: fig., 1989.

P. Roark, Aubel, J., Hodin, K., Kankarti-Sant'Anna, O., and Marfa, A., “Final evaluation of the USAID/Togo Rural Water Supply and Sanitation Project”, vol. no. 228. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xii, 95 p.: fig., photogr., tab., 1988.

M. Boesveld, “The Public Standpost Water Supplies Project in Indonesia : an overview with special emphasis on the methodology applied at the local demonstration schemes”. Institute of Human Settlements, Bandung, Indonesia, p. 52 p.: photogr., 1988.

VITA -Arlington, VA, US, Village technology handbook. Arlington, VA, USA: Volunteers in Technical Assistance, 1988, p. xiv, 422 p. : fig.

S. R. A. Huttly, Feachem, R. G., Blum, D., Okoro, J. I., Akujobi, C., and Kirkwood, B. R., “The bacteriological quality of traditional water sources in north-eastern Imo State, Nigeria”, Epidemiology and infection, pp. p. 429-437: fig., tab., 1987.