E whakaatuhia ana ngā hua e 1 - 3 o te 3 mō te rapu 'Validity and Validation' Whakamahine hua
  1. 1
    I whakaputaina 1988
    Pukapuka
  2. 2
    I whakaputaina 2011
    Connect to electronic resource
    Tāhiko īPukapuka
  3. 3
    ā- Gronlund, Norman Edward, 1920-
    I whakaputaina 2009
    Pukapuka