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2
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A manual on community participation / text Agness Simasiku ; ill. G.L. Lufeyo, K. de Waard and IRC.
- Piped supplies for small communities (PSSC) project Zambia,
- 1992.
- [S.l.] :
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Why a pit latrine : a manual for extension workers and latrine builders / Joseph Mate ; ill. G.L. Lufeyo.
- Piped supplies for small communities (PSSC) project Zambia,
- 1991.
- [S.l.] :