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HARVARD Citation
(Professor of measurement and statistics), P. et al. (2019) Using R for item response theory model applications. [Online]. London : Routledge. Available from: http://access.bl.uk/ark:/81055/vdc_100089043154.0x000001
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(Professor of measurement and statistics), P. et al. (2019) Using R for item response theory model applications. [Online]. London : Routledge. Available from: http://access.bl.uk/ark:/81055/vdc_100089043154.0x000001