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Claasen, F.

Bouman, D., Holtslag, H. & Claasen, F., 2012. WASH solutions for schools : a hand-out for the ARC Water schools Program,

Publié le: 05/03/2012

Around the world, there are hundreds of thousands of faith based schools. They are administered through a vast array of local, national, regional...

Childers, L. & Claasen, F., 1987. UNICEF's upward-flow water filter. , p.p. 29-31: ill. Available at: https://fr.ircwash.org/sites/default/files/Childers-1986-UNICEF.pdf.

Publié le: 30/12/2004

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