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  1. 21

    Co-operation in the African region on technologies and standards for local building materials.

    Published 1990
    Book
  2. 22

    Water audit-quality and quantity : educational material by UN-HABITAT and partners /

    Published 2001
    Book
  3. 23

    Water for African cities : phase II.

    Published 2005
    Book
  4. 24

    Water education in African cities : report of an expert group meeting, Johannesburg, South Africa, 30 April-2 May, 2001.

    Published 2001
    Conference Proceeding Book
  5. 25

    Powering Africa through feed-in tariffs / by Nganga, Joseph

    Published 2013
    Book
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  9. 29