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Filters: Keyword is ecological sanitation and Author is Mendis, U.A.  [Clear All Filters]
P. Calvert, Seneviratne, A., Premakumara, D. G. J., y Mendis, U. A., «Ecological sanitation a success in Sri Lanka», Waterlines, an international journal of water, sanitation and waste, pp. p. 22-24 : 4 boxes, 1 fig., 4 photogr., 2002.
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