H. A. Heijnen,
«Information in the water and sanitation sector»,
Information development, pp. p. 61-64, 71-151: fig., tab., boxes, 1994.
J. S. Parker,
«Managing information in the water and sanitation sector»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 28-31: photogr., ill., 1994.
M. J. Menou,
Measuring the impact of information on development. Ottawa, Ont, Canada: International Development Research Centre (IDRC), 1994, p. xiii, 188 p.: 11 tab.