D. K. Carl Bro I. Copenhagen,
“NRWSS : national rural water supply & sanitation strategy study : med term report. Vol. 3 : social and hygiene situation”. DANIDA, Ministry of Foreign Affairs, Copenhagen, Denmark, p. vii, 115 p. + ca. 20 p. annexes : fig., graphs, map, tabs., 1997.
C. Rakodi, Silva, T., and Russell, S.,
The opinions of health and water service users in Sri Lanka, vol. no. 25. Birmingham, UK: University of Birmingham, School of Public Policy, 1997.
D. Mutizwa-Mangiza,
The opinions of health and water service users in Zimbabwe, vol. no. 24. Birmingham, UK: University of Birmingham, School of Public Policy, 1997, p. iii, 33 p. : 1 fig., 2 tab.