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., (School, of, Mathematics, Natural, Sciences, and, Technology, Education))--University, of, the, Free, State,, 2011","Physical, sciences, --, Study, and, teaching, --, South, Africa","Physical, sciences, --, Curricula, --, South, Africa","Physical, sciences, --, South, Africa, --, Computer-assisted, instruction"]]

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颁布单位：[Rice University] |  颁布时间：2011 |  实施时间：2011 |  学科分类：[Environmental, health, Environmental, engineering, Health, sciences, Environmental, science, Applied, sciences, Natural, organic, matter, Fullerenes, Biochar, Earthworms]

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