Biblio

H. C. Sharma and Ram, S., “Maintenance, troubles and remedies of pumping-sets”. Action for Food Production, New Delhi, India, p. 12 p., 1978.

F. B. Wright, Rural water supply and sanitation, 3rd ed.rd ed. Huntington, NY, USA: Krieger, 1977, p. xiii, 305 p.

E. J. M. Kobus and Pieper, J. W., “Putverstopping”, vol. nr. 1. KIWA, Rijswijk, The Netherlands, p. 49 p., 1973.

H. Nurse, “Water meter repair flow-chart : a job - aid”. Pan American Health Organization (PAHO), Bridgetown, Barbados, p. 22 p.: drwngs.