World Bank -Washington, DC, US and MW, M. Water Depa,
“Report on workshop on national strategies for operation and maintenance of rural groundwater supplies, Mangochi, Malawi, 1-4 December 1986”. World Bank, Water and Sanitation Division, Washington, DC, USA, p. 66 p.: fig., tab., 1988.
T. Mujtaba,
“User reaction study on the Tara handpump”. UNICEF Water, Environment and Sanitation Section, Dhaka, Bangladesh, p. 8 p. + annexes, 1988.
L. K. National W. Ratmalana, LK, K. (Region)., and Eschborn, D. E. G. T. Z. -,
“VLOM pump OTC - system”. German Agency for Technical Cooperation, Eschborn, Germany, p. 15 p.: photogr., 1988.