颁布单位：[University of the Free State] |  颁布时间：2011 |  实施时间：2011 |  学科分类：[["Thesis, (Ph.D., (Centre, for, Environmental, Management))--University, of, the, Free, State,, 2011","Water, resource, development","Water-supply, --, Management","Water, quality, management"]]

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颁布单位：[University of the Free State] |  颁布时间：2011 |  实施时间：2011 |  学科分类：[["Petroleum, chemicals, industry, --, Economic, aspects","Petroleum, chemicals, industry, --, Estimates","Petroleum, chemicals, industry, --, Cost","Thesis, (Ph.D., (Quantity, Surveying, and, Construction, Management))--University, of, the, Free, State,, 2011"]]

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