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  1. 1
    Publicat 1989
    Continuing Resource

    Educational technology research and development ETR & D.
  2. 2
    Publicat 1986
    Continuing Resource

    International journal of educational research.
  3. 3
    Publicat 1976
    Continuing Resource

    Assessment and evaluation in higher education.
  4. 4
    Continuing Resource

    Educational evaluation and policy analysis.
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