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USE OF WASTE WATER FOR FOOD PRODUCTION IN URBAN AND PERI-URBAN HOMESTEAD GARDENS OF SOUTH AFRICA Nicola Rodda, Gerhard Backeberg sciencesconf.org:icid2015:65149
Sustainable irrigation in South Africa: Evidence from history Gerhard Backeberg, Lani Van Vuuren sciencesconf.org:icid2015:75961

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