K. Wehrle, Pfiffner, H., Meuli, C., and Muller, H.,
Building construction, vol. no. 3. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 2000, p. 57 p. : fig., photogr., techn.drwg.
S. Collins,
Hand-dug shallow wells, vol. no. 5. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 2000, p. 92 p. : boxes, fig., tab.
V. Whitehead,
“The manufacture of direct action handpumps for use with domestic rainwater harvesting tanks”, vol. TR-RWH09. University of Warwick, School of Engineering, Development Technology Unit, Warwick, UK, p. 28 p. : fig., tab., 2000.