B. van Koppen, Butterworth, J., y Juma, I.,
«African water laws : plural legislative frameworks for rural water management in Africa : an international workshop : 26-28 January 2005, Johannesbu..». International Water Management Institute (IWMI), Pretoria, South Africa, p. ca. 300 p. : boxes, fig., tab. , 2005.
J. Butterworth, Reddy, Y. V. Malla, Renuka, B., y Reddy, G. V.,
«Avoiding fluoride in drinking water, Andhra Pradesh, India»,
Waterlines, an international journal of water, sanitation and waste, pp. p.24-26 : 1 box, 1 fig., 3 photogr., 1 tab., 2005.
J. Butterworth y Smout, I.,
«Productive uses of domestic water : opportunity or threat?», in
Maximizing the benefits from water and environmental sanitation : 31st WEDC conference, Kampala, Uganda, 31 October - 4 November 2005 : conference proceedings, 2005, pp. P. 459-462 : 1 box, .