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  1. 1

    Effects of the use of videotapes on biology students achievement, retention and attitude towards science per De Gulan, Ma. Victoria R.

    Publicat 1999
    Thesis

    Effects of the use of videotapes on biology students achievement, retention and attitude towards science
  2. 2

    Students' achievement in ecology in relation to their perceptions of teacher performance and subject difficulty per Japos, Neria Tagaro

    Publicat 1985
    Thesis

    Students' achievement in ecology in relation to their perceptions of teacher performance and subject difficulty

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