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. 1970 Apr;9(2):142-55.
doi: 10.1016/0022-0965(70)90079-2.

Effects of arithmetic problem difficulty on pupillary dilation in normals and educable retardates

F Boersma, K Wilton, R Barham, W Muir

Effects of arithmetic problem difficulty on pupillary dilation in normals and educable retardates

F Boersma et al. J Exp Child Psychol. 1970 Apr.
No abstract available

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