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  1. 1

    Manual on specifications of instructional tools and devices.

    Argitaratua 1990
    Liburua

    Manual on specifications of instructional tools and devices.
  2. 2

    Training module in production and use of training aids nork Mariano, Sinesio M.

    Argitaratua 1984
    Liburua

    Training module in production and use of training aids

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