颁布单位：[Stellenbosch University] |  颁布时间：1990 |  实施时间：1990 |  学科分类：[["Children, and, the, environment",, "Environmental, education",, "Human, ecology, --, Study, and, teaching",, "Conservation, of, natural, resources, --, Study, and, teaching",, "Dissertations, --, Education"]]

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颁布单位：[University of the Free State] |  颁布时间：1990 |  实施时间：1990 |  学科分类：[["Thesis, (D.Litt.), University, of, the, Free, State,, 1991","Afrikaans, language, --, Study, and, teaching, (Secondary)","Language, teachers","Thesis, (D.Litt.), University, of, Free, State,, 1991"]]

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