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1
Manual on the design, construction and maintenance of low-cost pour-flush waterseal latrines in India
Gepubliceerd in 1984Boek -
2
A monitoring and evaluation manual for low-cost sanitation programs in India.
Gepubliceerd in 1984Boek -
3
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4
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5
The ventilated improved double-pit latrine a construction manual for Botswana
Gepubliceerd in 1983Boek -
6
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7
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8
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9
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10