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National Water Supply and Drainage Board -Ratmalana, LK
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1986
L. K. National W. Ratmalana
,
«
A people's achievement : pure water for Haldummulla
»
. National Water Supply and Drainage Board, Colombo, Sri Lanka, p. video (29 min.): VHS, Pal, 1986.
1985
L. K. National W. Ratmalana
y
IRC International Water and Sanitation Centre, The Hague, NL
,
«
Report on national workshop to share experiences of PSWS and sanitation planned and implemented with community participation (December 2nd-6th 1985)
»
. National Water Supply and Drainage Board, Mount Lavinia, Sri Lanka, p. 218 p., 1985.
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