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close this bookSpecial Public Works Programmes - SPWP - Anti-Erosion Ditches - Training Element and Technical Guide for SPWP Workers, Booklet No. 1 (ILO - UNDP, 84 p.)
View the document(introduction...)
View the document1. What is erosion?
View the document2. How to recognise erosion
Open this folder and view contents3. Different types of anti-erosion ditches
Open this folder and view contents4. Worksite organisation
Open this folder and view contents5. Procedure
View the document6. Maintenance of the retaining banks
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