颁布单位：[University of the Free State] |  颁布时间：2003 |  实施时间：2003 |  学科分类：[["Readiness, for, school","Education,, Preschool","Deaf, children, --, Education, (Early, childhood)","Hearing, impaired, children","Sign, languages","Dissertation, (M.A., (Afro-Asiatic, Studies,, Sign, Language, and, Language, Practice))--University, of, the, Free, State,, 2003"]]

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