Biblio

S. S. D. Foster and Lawrence, A. R., “Groundwater quality in Asia : an overview of trends and concerns”, Water resources journal, pp. p. 97-110: 9 fig., 7 tab., 1995.

S. S. D. Foster, “Potable groundwater supplies and low-cost sanitary engineering : how compatible?”, Natural resources forum, pp. p. 125-132, 1985.

D. E. Walling, Foster, S. S. D., and Wurzel, P., “Challenges in African hydrology and water resources”, vol. no. 144. International Association of Hydrological Sciences, Wallingford, UK, 1984.

B. S. Drasar, Foster, S. S. D., and Lewis, W. J., “The risk of groundwater pollution by on-site sanitation in developing countries”, vol. no. 01/82. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. 79 p. : fig., tab., 1982.

S. S. D. Foster and Ward, C. F., “On-site sanitation and groundwater quality : a methodology for monitoring”. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. 78 p.: fig., tab., 1981.

S. S. D. Foster, Lewis, W. J., and Farr, J. L., “The pollution hazard to village water supplies in eastern Botswana”, Proceedings of the Institution of Civil Engineers, 1980.