Biblio

K. Nimpuno, «Sewage disposal in developing countries : a survey of methods». Bouwcentrum International Education (BIE), Rotterdam, The Netherlands, p. 49 p. : fig., tab.

G. B. National I. Silsoe, «Simple water pump». National Institute of Agricultural Engineering, Silsoe, UK, p. 8 p. : techn.drwng.

J. C. Royer, «Standard detail drawings - waterworks : a job - aid». Pan American Health Organization (PAHO), Bridgetown, Barbados, p. 29 p.: techn.drwngs.

B. Brandberg, «Strategic sanitation and hygiene promotion for schools : sanitation technology options. Part 1. Catalogue ». SBI Consulting International, Mbabane, Swaziland, p. 13 p. : techn.drwngs.

B. Brandberg, «Strategic sanitation and hygiene promotion for schools : sanitation technology options. Part 2. Construction drawings». SBI Consulting International, Mbabane, Swaziland, p. 25 p. : techn. drwngs.

I. N. U. N. I. C. E. F. - Chennai, «Technical design hand book on sanitation and hygiene facilities at schools & anganwadies». UNICEF, Chennai, India, p. ca 60 p. : techn.drwng.