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Okoro, J.I.

Huttly, S.R.A. et al., 1990. The Imo State (Nigeria) drinking water supply and sanitation project. 1 : Description of the project, evaluation methods, and impact on intervening variables. , pp.p. 309-315. Available at: https://es.ircwash.org/sites/default/files/203.1-90IM-8083.pdf.

Fecha publicación: 30/12/2004

Huttly, S.R.A. et al., 1987. The bacteriological quality of traditional water sources in north-eastern Imo State, Nigeria. , pp.p. 429-437: fig., tab. Available at: https://es.ircwash.org/sites/default/files/241.1-4983.pdf.

Fecha publicación: 01/01/1970

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