R. van Kerkvoorden,
“Information about the "Bandung" shallow well handpump”. IWACO, Bandung, Indonesia, p. ca. 100 p.: fig., tab., photogr., 1979.
E. W. Steel and McGhee, T. J.,
Water supply and sewerage, 5th ed., International student ed.th ed. Auckland, New Zealand: McGraw-Hill, 1979, p. xiv, 665 p.: fig., tab.
M. Stahl, Sachak, N., and Mkusa, G.,
“Water to the villages : a socio-economic study of water-related problems in Northern Njombe”, vol. no. 54. University of Dar es Salaam, Bureau of Resource Assesssment and Land Use Planning, Dar es Salaam, Tanzania, p. 2, 91 p. : fig., tab., 1979.