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