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- 1 Biskra city; Design flow; flood r...
- 1 Bordj Mira, Protection, Floods ri...
- 1 Bordj Mira, Protection, risques d...
- 1 Boues résiduaires ; IRRIGATION ; ...
- 1 Bouguirat secteur (1), périmètre,...
- 1 Bouira, Retenue collinaire, Impac...
- 1 Boumengouche , sewage network , w...
- 1 Bourached, Sanitation network, th...
- 1 Brine ; Demineralization ; Revers...
- 1 Chalghoum Laid region, irrigation...
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- 81 2007 - 2009