Biblio

K. Choe y Whittington, D., «Economic benefits available from the provision of improved potable water supplies : a review and assessment of the existing evidence», vol. no. 77. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. x, 77 p.: 7 fig., 6 tab., 1992.

D. T. Lauria, Wright, A. M., Hughes, J., Choe, K., Whittington, D., y Swarna, V., «Household demand for improved sanitation services : a case study of Kumasi, Ghana», vol. no. 3. World Bank, Water and Sanitation Division, Washington, DC, USA, p. ix, 118 p.: 17 fig., 24 tab., 1992.

D. Whittington, Lauria, D. T., Wright, A. M., Choe, K., Hughes, J., y Swarna, V., «Households' willingness to pay for improved sanitation in Kumasi, Ghana: results of a contingent valuation study», vol. SW 7. World Bank, Water and Sanitation Division, Washington, DC, USA, p. 4 p.: 1fig., 1 tab., 1992.

M. Mujwahuzi, McMahon, G., Choe, K., y Whittington, D., «Willingness to pay for water in Newala district, Tanzania : strategies for cost recovery», vol. no. 246. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. x, 205 p.: fig., tab., 1989.