World Bank -Washington, DC, US and UNDP -New York, NY, US, “Guidelines for the development of water and sanitation sector strategy and action plans for low-income groups”. World Bank, Washington, DC, USA, p. 34 p. + 59 p. annexes: fig., 1989.

USAID -Washington, DC, US, UNDP -New York, NY, US, and Peace Corps -Washington, DC, US, “The water of Ayole”. UNDP (United Nations Development Programme), New York, NY, USA, p. video (28 min.): VHS, Pal, 1988.

UNDP -New York, NY, US and WHO. Regional Office for South-East Asia -New Delhi, IN, SEARO, “Case study on community attitudes towards public and private toilets, Maldives”. World Health Organization (WHO), New Delhi, India, p. 56 p.: fig., tab., 1985.

WHO -Geneva, CH, World Health Organization, World Bank -Washington, DC, US, and UNDP -New York, NY, US, “Community participation in tropical disease control : social and economic research issues : report of the scientific working group on social and economic research”. World Health Organization (WHO), Geneva, Switzerland, p. 32 p.: fig., tab., 1983.