«SEWA paper series». Self Employed Women's Association, SEWA, Ahmedabad, India.
K. Nimpuno,
«Sewage disposal in developing countries : a survey of methods». Bouwcentrum International Education (BIE), Rotterdam, The Netherlands, p 49 p. : fig., tab.
S. H. A. R. E. Sanitation Equity,
«SHARE Policy Briefing». Sanitation and Hygiene Applied Research for Equity, SHARE, London, UK.
I. Guest,
«Shishir of Bangladesh». UNICEF, Geneva, Switzerland, p Slide series (30 slides + text, 8p.).
G. B. National I. Silsoe,
«Simple water pump». National Institute of Agricultural Engineering, Silsoe, UK, p 8 p. : techn.drwng.
SIWI report. Stockholm, Sweden: Stockholm International Water Institute (SIWI).