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Adriana G. Bus, Marinus H. van Ijzendoorn, Mothers Reading to Their 3-Year-Olds: The Role of Mother-Child Attachment Security in Becoming Literate, Reading Research Quarterly, Vol. 30, No. 4 (Oct. - Nov. - Dec., 1995), pp. 998-1015
Bus et al. (Sun,) studied this question.